Said It Here

Landlord built a fence around the AC and it broke

When a broken air conditioner leaves your home unlivable during a heatwave, you are left waiting indefinitely for a repair while scrambling to find alternative shelter for a newborn. Meanwhile, DIY attempts to clean the condenser coil with store-bought brushes risk causing major damage that leads to thousands of dollars in professional repair costs.

Overview
People affected95 accounts across 7 forums
Workarounds found195 items attempted
Community agreement5,575 total upvotes

What the numbers show

Counted from the threads quoted below. How we count

  • Most of it landed at once — the busiest month was September 2026, with 79 people.
  • This comes up 20.5× more often in r/hvacadvice than across the site as a whole.

What people tried

Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.

195 items+ Contribute

Found another way around this?

Share your steps and trade-offs so fellow engineers don't have to reinvent the wheel. No account required.

  1. 1
    Changing the air filter
    3 people mentioned
    Did this help you?
  2. 2
    Calling an HVAC technician
    2 people mentioned
    Did this help you?
  3. 3
    removing every other picket
    Did this help you?
  4. 4
    drilling a couple hundred holes
    Did this help you?
  5. 5
    opening the access gate
    Did this help you?
  6. 6
    Using fin combs and brushes to painstakingly straighten the fins section by section
    Did this help you?
  7. 7
    Power washing from the inside out to blow the fins back open
    Did this help you?
  8. 8
    Removing the casing/tins to use a fin knife on every individual fin
    Did this help you?
  9. 9
    Replacing the entire coil or unit
    Did this help you?
  10. 10
    having a reputable company check static pressure
    Did this help you?
  11. 11
    adjusting the blower speed
    Did this help you?
  12. 12
    asking for advice online
    Did this help you?
  13. 13
    Leave the unit turned off and let it sit level for 24 to 72 hours so the oil can settle.
    Did this help you?
  14. 14
    Wait for maintenance to come fix or replace it.
    Did this help you?
  15. 15
    Run it until it breaks and make the landlord pay for it.
    Did this help you?
  16. 16
    Taking the car to a quick-lube shop or professional garage for service
    Did this help you?
  17. 17
    Having the air conditioning system inspected or recharged by a professional shop
    Did this help you?
  18. 18
    Watering down the outside AC unit to help it cool off
    Did this help you?
  19. 19
    Turning the entire AC off at night and running it during the day
    Did this help you?
  20. 20
    turning the unit off and on again
    Did this help you?
  21. 21
    checking the wall plug
    Did this help you?
  22. 22
    checking the outlet voltage with a multimeter
    Did this help you?
  23. 23
    getting a specialty recharge hose with a gauge from an auto parts store to refill the low side port while the car is running
    Did this help you?
  24. 24
    Making a maintenance call to building management
    Did this help you?
  25. 25
    calling the original installing contractor
    Did this help you?
  26. 26
    getting a second opinion on the leak and labor pricing
    Did this help you?
  27. 27
    contacting the manufacturer or dealer to confirm warranty status
    Did this help you?
  28. 28
    letting the technician troubleshoot normally without homeowner guidance
    Did this help you?
  29. 29
    moving clutter away from the air handler prior to the technician's arrival
    Did this help you?
  30. 30
    turning the ac in fan on with the cool setting off to melt the ice
    Did this help you?
  31. 31
    turning the entire unit completely off until maintenance arrives
    Did this help you?
  32. 32
    Checking the unit for vibrating panels
    Did this help you?
  33. 33
    Shut down the unit and call a professional
    Did this help you?
  34. 34
    Check the capacitor
    Did this help you?
  35. 35
    replacing batteries
    Did this help you?
  36. 36
    power cycling
    Did this help you?
  37. 37
    factory resetting
    Did this help you?
  38. 38
    cleaning with canned air
    Did this help you?
  39. 39
    Resetting the circuit breaker
    Did this help you?
  40. 40
    Checking the disconnect switch
    Did this help you?
  41. 41
    Watching YouTube videos to attempt DIY fixes like replacing a capacitor
    Did this help you?
  42. 42
    Checking temperature differences between return and supply grills with a kitchen thermometer
    Did this help you?
  43. 43
    Adding refrigerant from a can to check system pressures
    Did this help you?
  44. 44
    Adding r134a refrigerant
    Did this help you?
  45. 45
    Checking and monitoring oil levels
    Did this help you?
  46. 46
    Buying a larger capacitor online or matching the MFD and voltage ratings.
    Did this help you?
  47. 47
    Replacing the blower motor resistor or rheostat
    Did this help you?
  48. 48
    Keep calling maintenance to add more refrigerant instead of replacing the unit
    Did this help you?
  49. 49
    Ask the landlord or technician to perform a leak search or add leak sealant
    Did this help you?
  50. 50
    Programmed to do so.
    Did this help you?
  51. 51
    Turning off the unit to allow it to thaw and changing the return air filter
    Did this help you?
  52. 52
    Running standalone fans instead of the air conditioner
    Did this help you?
  53. 53
    Turning off the AC unit completely until professionals can inspect and fix the pitch
    Did this help you?
  54. 54
    Calling the emergency service number to have a technician inspect and replace the faulty unit.
    Did this help you?
  55. 55
    Checking the circuit breakers and outside disconnect switch to ensure power is active
    Did this help you?
  56. 56
    Filing a claim through a home warranty
    Did this help you?
  57. 57
    Replacing components like capacitors independently
    Did this help you?
  58. 58
    Cleaning condenser coils
    Did this help you?
  59. 59
    Hiring a professional service technician
    Did this help you?
  60. 60
    calling a professional
    Did this help you?
  61. 61
    checking amp draw and voltage
    Did this help you?
  62. 62
    contacting customer service
    Did this help you?
  63. 63
    weighing the refrigerant charge
    Did this help you?
  64. 64
    Hiring an independent HVAC technician for a second opinion
    Did this help you?
  65. 65
    Requesting repeated repair visits under the builder warranty
    Did this help you?
  66. 66
    Calling a reliable HVAC professional for help
    Did this help you?
  67. 67
    taking things apart to clear ice from the evaporator coils
    Did this help you?
  68. 68
    replacing air filters
    Did this help you?
  69. 69
    cleaning outside condenser coils
    Did this help you?
  70. 70
    calling a technician for a leak check and refrigerant top-off
    Did this help you?
  71. 71
    buying a portable room AC or window unit
    Did this help you?
  72. 72
    checking circuit breakers and thermostat settings
    Did this help you?
  73. 73
    spraying down the outdoor compressor with a garden hose
    Did this help you?
  74. 74
    Shuting off the HVAC unit for a day to allow it to thaw
    Did this help you?
  75. 75
    Drying off the top of the furnace
    Did this help you?
  76. 76
    Using black cork tape to seal escaping air
    Did this help you?
  77. 77
    Checking the air filter and blower wheel
    Did this help you?
  78. 78
    Calling a company out to add refrigerant
    Did this help you?
  79. 79
    Sourcing remaining R410A stock to replace only the outdoor condenser, often offering limited warranties such as one month.
    Did this help you?
  80. 80
    Replacing the entire AC compressor assembly instead of just the individual clutch coil component
    Did this help you?
  81. 81
    Keep a backup capacitor on hand
    Did this help you?
  82. 82
    Taking the vehicle to a different shop for a second opinion or to a specialized local AC shop
    Did this help you?
  83. 83
    Adding refrigerant (Freon) to see if it temporarily restores functionality or detects a leak
    Did this help you?
  84. 84
    turning off the system and letting it defrost naturally for several hours or overnight
    Did this help you?
  85. 85
    switching the thermostat fan setting from auto to on to blow air across the coils and speed up thawing
    Did this help you?
  86. 86
    changing dirty air filters and checking for blocked airflow or closed registers
    Did this help you?
  87. 87
    calling a professional technician to diagnose refrigerant levels and system pressures
    Did this help you?
  88. 88
    Manually spinning the fan blade with a stick
    Did this help you?
  89. 89
    Replacing the capacitor independently
    Did this help you?
  90. 90
    Finding an independent side-job technician
    Did this help you?
  91. 91
    Leaving the switch off for a few hours to temporarily stop the breaker from tripping for about 8 hours
    Did this help you?
  92. 92
    Getting multiple quotes from different contractors
    Did this help you?
  93. 93
    Considering cheaper independent contractors over reputed companies
    Did this help you?
  94. 94
    Weighing equipment costs against imminent house sales
    Did this help you?
  95. 95
    Setting the system to only run the fan with no cooling for a few hours to see if the coil is freezing periodically.
    Did this help you?
  96. 96
    Looking for suggestions on alternative single room AC unit brands or models like Friedrich
    Did this help you?
  97. 97
    Setting the thermostat to 65 and auto
    Did this help you?
  98. 98
    Submitting a maintenance work order
    Did this help you?
  99. 99
    Replace components like the AC condenser and compressor, or check refrigerant levels.
    Did this help you?
  100. 100
    Throwing away the unit and buying a new one instead of paying for a service repair
    Did this help you?
  101. 101
    Having apartment maintenance temporarily fix the unit every time it breaks
    Did this help you?
  102. 102
    Waiting for the installation company to come look at the system.
    Did this help you?
  103. 103
    Asked apartment maintenance
    Did this help you?
  104. 104
    Accepting that warranties only cover parts and not labor
    Did this help you?
  105. 105
    Replacing failed coils as they leak despite long wait times for shipping
    Did this help you?
  106. 106
    Using small window AC units
    Did this help you?
  107. 107
    Staying in a hotel for the night
    Did this help you?
  108. 108
    Surviving with a window unit in the bedroom
    Did this help you?
  109. 109
    disconnecting lines where they meet the firewall and flushing the evaporator
    Did this help you?
  110. 110
    using a gallon of AC flush and pulsing compressed air through each way until solvent comes out clean
    Did this help you?
  111. 111
    Testing components with a multimeter, checking blower motor resistance, and asking for troubleshooting advice on forums
    Did this help you?
  112. 112
    Turning off the cool setting and running only the fan to let the system thaw
    Did this help you?
  113. 113
    Setting the thermostat higher to reduce cooling runtime and prevent freezing
    Did this help you?
  114. 114
    Shutting the system down entirely the night before the technician arrives
    Did this help you?
  115. 115
    Swapping in new fuses repeatedly
    Did this help you?
  116. 116
    Unplugging the compressor electrical connector to test for power draw issues
    Did this help you?
  117. 117
    Using cool water briefly or a wet towel to speed up the thermal reset rather than running a continuous hose
    Did this help you?
  118. 118
    Troubleshooting underlying issues like airflow, coil cleanliness, refrigerant charge, and electrical components
    Did this help you?
  119. 119
    Allowing the landlord to continue yearly refrigerant recharges
    Did this help you?
  120. 120
    Accepting temporary relief during the summer months
    Did this help you?
  121. 121
    calling an HVAC company for professional diagnostics and repair
    Did this help you?
  122. 122
    reviewing warranty terms to see if replacement parts are covered
    Did this help you?
  123. 123
    rev the engine to temporarily restore AC cooling
    Did this help you?
  124. 124
    performing a magnetic clutch rewind as a temporary solution
    Did this help you?
  125. 125
    Trying to use a shorter belt to bypass the compressor
    Did this help you?
  126. 126
    Attempting to use a bypass pulley with the original size belt
    Did this help you?
  127. 127
    Planning to tow the vehicle to a trusted regular repair shop
    Did this help you?
  128. 128
    Checking if electric cooling fans activate when AC is selected
    Did this help you?
  129. 129
    Testing component behavior after the engine has been running or driven
    Did this help you?
  130. 130
    Constantly adjusting the thermostat settings
    Did this help you?
  131. 131
    Filing repeated maintenance tickets and demanding a qualified technician
    Did this help you?
  132. 132
    Considering paying out of pocket for an independent HVAC company to inspect the unit
    Did this help you?
  133. 133
    Texting an AC handyman or calling a service technician
    Did this help you?
  134. 134
    Buying a replacement capacitor from Home Depot or a local HVAC supply house to fix it yourself
    Did this help you?
  135. 135
    flushing the drain pipe
    Did this help you?
  136. 136
    cleaning the coils
    Did this help you?
  137. 137
    Calling the installation contractor back to readjust the unit
    Did this help you?
  138. 138
    Manually wiping up the water to prevent wall damage
    Did this help you?
  139. 139
    Turn the AC off and keep the fan set to ON
    Did this help you?
  140. 140
    testing components with a multimeter
    Did this help you?
  141. 141
    checking if the outside condenser unit is running
    Did this help you?
  142. 142
    Checking the thermostat model or inspecting the air filter
    Did this help you?
  143. 143
    buying tools like gauges and a multimeter to try diagnosing it yourself using online videos
    Did this help you?
  144. 144
    taking the car to an auto repair shop or an A/C specialty shop to have professionals handle the diagnosis and repair
    Did this help you?
  145. 145
    trying to fix the unit independently
    Did this help you?
  146. 146
    unplugging and resetting the AC
    Did this help you?
  147. 147
    checking the breaker box
    Did this help you?
  148. 148
    continuing to replace compressors under warranty while paying out-of-pocket for service and refrigerant
    Did this help you?
  149. 149
    seeking second opinions from different HVAC companies
    Did this help you?
  150. 150
    asking contractors to check for installation issues like vertical riser length or oil traps
    Did this help you?
  151. 151
    Checking supply versus return air temperature (Delta T) using a kitchen thermometer
    Did this help you?
  152. 152
    Inspecting the line set to see if lines are warm or cold
    Did this help you?
  153. 153
    Checking thermostat runtime logs on smart thermostats like Ecobee
    Did this help you?
  154. 154
    Using a band-aid fix like Sav-a-Lug to buy a few more years
    Did this help you?
  155. 155
    Testing windings to ground with a meter
    Did this help you?
  156. 156
    Checking for loose connections and high amp draw
    Did this help you?
  157. 157
    Staying at a friend's house when it gets too hot
    Did this help you?
  158. 158
    Using portable or window AC units
    Did this help you?
  159. 159
    Filing claims through renter's insurance for hotel stays
    Did this help you?
  160. 160
    Allowing the unit to thaw completely before turning it back on
    Did this help you?
  161. 161
    Running the system in the fan-only setting to help thaw
    Did this help you?
  162. 162
    Checking and replacing restrictive or dirty air filters
    Did this help you?
  163. 163
    Inspecting the condensate drain to ensure it is clear
    Did this help you?
  164. 164
    Calling an HVAC technician for further diagnostics or repair
    Did this help you?
  165. 165
    Calling 311 and getting housing inspectors involved
    Did this help you?
  166. 166
    Using portable cooling units provided by management
    Did this help you?
  167. 167
    Using renters insurance to find alternative accommodation
    Did this help you?
  168. 168
    Working with a realtor to find a new apartment and move out
    Did this help you?
  169. 169
    Turning the condenser breaker or system power off and on again
    Did this help you?
  170. 170
    Checking indoor filters
    Did this help you?
  171. 171
    Ensuring all indoor units are set to the same operating mode
    Did this help you?
  172. 172
    Replacing thermostat batteries
    Did this help you?
  173. 173
    Seeking free DIY advice and diagnostic tips on online forums by posting photos of wiring and equipment
    Did this help you?
  174. 174
    Spraying down the coil with cleaner
    Did this help you?
  175. 175
    Trying to straighten fins with a fin comb
    Did this help you?
  176. 176
    Considering hiring a third-party HVAC company for a second opinion
    Did this help you?
  177. 177
    Catching dripping condensation in a bucket
    Did this help you?
  178. 178
    Turning off the unit and breakers
    Did this help you?
  179. 179
    Filing a complaint with the builder
    Did this help you?
  180. 180
    Checking occupancy certificates to prove move-in dates
    Did this help you?
  181. 181
    Threatening to go to the state board of HVAC
    Did this help you?
  182. 182
    Cutting ties with contractors and getting a fresh project done
    Did this help you?
  183. 183
    moving the unit
    Did this help you?
  184. 184
    installing a security cage
    Did this help you?
  185. 185
    filing an insurance claim
    Did this help you?
  186. 186
    installing security cameras
    Did this help you?
  187. 187
    Waiting to see if the leak gets bigger over time to eventually locate it
    Did this help you?
  188. 188
    Performing multiple re-charges
    Did this help you?
  189. 189
    Turning off the main power supply to try and reset the unit.
    Did this help you?
  190. 190
    Waiting a few days to see if the appliance fixes itself.
    Did this help you?
  191. 191
    Paying a technician to refill refrigerant and clean filters, even if it doesn't fix the root electrical issue.
    Did this help you?
  192. 192
    Replacing the entire system once repairs become a money pit.
    Did this help you?
  193. 193
    Paying exorbitant quotes from traditional HVAC companies
    Did this help you?
  194. 194
    Replacing the entire system instead of repairing the leaks
    Did this help you?
  195. 195
    Performing a DIY pressure test and repairing the flare joints yourself
    Did this help you?
Tried another approach not listed above?+ Share your workaround ↑

In their words

Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.

r/hvacadvice76 people · September 2025 – November 2026

“I made the giant mistake of improperly using a pressure washer on my condenser coil.”source ↗

“I have gotten several different kinds of condenser coil combs and brushes from Lowe’s, but I don’t know if I’m in over my head and I’m gonna have to fork over the probably thousands of dollars.”source ↗

ledbyhershey · r/hvacadvice · 2,432 upvotes

“This thing is a suction magnet. It is SO loud from the air movement alone.”source ↗

biscuity87 · r/hvacadvice · 1,377 upvotes

“I wanted advice on whether or not I can safely use the unit (its really hot inside the apartment) or if I should leave it turned off. Also, is there any salvaging the unit?”source ↗

esmwiii · r/hvacadvice · 1,025 upvotes

“will I had to do some work on a unit and decided to bolt it down hour and a half later after lunch I come back to it destroyed and another one stolen 2:00 in the afternoon there getting brave.”source ↗

acidlaugh · r/hvacadvice · 138 upvotes

“Realistically, how long does the repair take? We’re in the middle of a heatwave and I have a newborn. I can make plans to be elsewhere for a day or two but I’d really like to be able to stay home with my baby soon.”source ↗

galumphingseals · r/hvacadvice · 98 upvotes

“Installed a MrCool 24k DIY today… turned it on and everything started right up… gave it 20-30 minutes and air isn’t cold?”source ↗

IKETHEPIKER · r/hvacadvice · 19 upvotes

“Just came home to an 85 degree house with my unit not working and just humming (video included). So far the places I've called the soonest one said they probably wouldn't get to me till Tuesday ish.”source ↗

Various-Tennis551 · r/hvacadvice · 19 upvotes

“Old Capicitor at bottom, replaced with the same sized one (Titan HD), then yesterday at 109* Heat the AC would turn on for 2-3 minutes then shut off, I had gotten the bigger one online and decided to switch it.”source ↗

Vino1980 · r/hvacadvice · 17 upvotes

“Recently spent several thousand dollars on an entire new unit. 2 days later I noticed it is not cooling as it should and there is a lot of condensation on the air handler.”source ↗

“I look inside the cabinet under the unit and see one of the wall is just gone and the entire unit is full of insulation that it sucked into the unit.”source ↗

“What a nightmare, all due to someone not sealing the plenum properly.”source ↗

Mnmsaregood · r/hvacadvice · 12 upvotes

“My electricity is consistently through the roof (no pun intended). It's already frozen up once, yet all they do is spray it down with cleaner and leave.”source ↗

ParticularPound7060 · r/hvacadvice · 12 upvotes

“I’m a little sad it decided to give up during my first year of owning the house. The Texas heat is no joke, and I’ve been sweating since Thursday.”source ↗

jennywenny21 · r/hvacadvice · 7 upvotes

“I heard a pretty loud clunk noise earlier, some of the fan blades are wedged up against the fins…. And one of them is completely broken off.”source ↗

jeddzus · r/hvacadvice · 6 upvotes

“AC runs but stopped cooling, putting out warm air only. AC tech found the freon charge was down to 40 PSI and says 120 – 150 is normal. Tried to re-charge it, but said it’s “restricted” and won’t take a charge.”source ↗

“My concern is what if I go ahead and replace ‘em and then we still can’t get it to charge up and I’m out the money?”source ↗

Hey19TheCuervoGold · r/hvacadvice · 5 upvotes

“When we returned last night, I turned the air back down to 73 and went to bed. Waking up in the middle of the night I noticed the house was still warm after being on for about 4 hours and checked the thermostat and saw the house was at 75 not 73.”source ↗

“I also noticed the airflow from the vents was not as strong so I went downstairs and noticed the copper AC inlet line to the furnace was frozen as shown along with build up of ice in a couple other areas on the inlet line clamps.”source ↗

Ryansmith2513 · r/hvacadvice · 4 upvotes

“Hello! I live in an apartment complex, I’m wondering because this thing drips water at times and I don’t know why??”source ↗

sagacious_artist · r/hvacadvice · 4 upvotes

“Every summer, it stops blowing cold and the landlord sends someone to 'recharge it'.”source ↗

“It works for a few months, then dies again. This is the third year in a row.”source ↗

Civil_Visit_7446 · r/hvacadvice · 4 upvotes

“I have a 3 y/o Rheem air conditioner. In January I had to replace the condenser coil due to a leak under warranty. Now, 9 months later, I have replaced the evaporator coil due to a leak again.”source ↗

“Both times the part took weeks to be exchanged because Rheem warranty parts took that long to arrive.”source ↗

“My manufacturer warranty period is 10 years but I am questioning what that is worth as Rheem does not cover the labor and now both coils have lasted about a third of the warranty period.”source ↗

“I have spent a lot of money on keeping this unit running.”source ↗

Trick_Tap9936 · r/hvacadvice · 3 upvotes

“It’s currently 10:30 pm and i am sweating my butt off. I opened the ac unit thing and saw that my filter looks frozen. my AC completely stopped blowing air.”source ↗

“we don’t have an emergency number either. it is Saturday night and they won’t be able to come until monday morning. please, what can i do for now?”source ↗

Agreeable_Lobster585 · r/hvacadvice · 3 upvotes

“Same shit happened to me. Sav-a-Lug fixed it for a few more years until replaced.”source ↗

ToronadoBubby · r/hvacadvice · 3 upvotes

“There is no noticeable cooling or heating — basically just room-temperature air. Then the top indicator light and the timer/clock light start flashing. The unit also makes repeated beeping sounds. All 5 indoor units behave the same way.”source ↗

Fabulous-Touch2855 · r/hvacadvice · 3 upvotes

“It recently started showing a UA error code after electricity went out and came back on and started beeping continuously and had to turn off the main power supply of it to turn it off. After turning it back on the Air comes through but is not cold”source ↗

Fit-Sheepherder578 · r/hvacadvice · 3 upvotes

“So annoyed my outside AC unit when it was really hot about two weeks ago my fan stopped spinning and hot air was coming into the house.”source ↗

“Today it hits 103 fan cuts off again”source ↗

Few_Jackfruit_5264 · r/hvacadvice · 2 upvotes

“My AC wall unit is constantly making this noise when off.”source ↗

“Even if I go a full weekend without being home and having the AC on, I’ll come home and it’ll be making this loud humming noise.”source ↗

“It’s incredibly noisy and does not sound like something that should be happening, especially after just sitting there for days.”source ↗

catstacker · r/hvacadvice · 2 upvotes

“I am confused what to do now , I missed to register for warranty so I have only 5 year default parts warranty with Lennox now”source ↗

“quoted me for 5k$ to replace coil”source ↗

“I’m lost what to do next , any help and advice to save my situation”source ↗

dino_advice · r/hvacadvice · 2 upvotes

“come to check it and now there’s ice build up in the vent/coils (?) the part where the filter goes, i turned it back on fan mode with cool off, ice melts down quickly from that part and it’s been at that setting for about 12hrs, now hitting 60f while we’re 95f outside, it is completely in fan mode and i’m wondering if i should just turn off the entire unit until maintenance comes by but scared of ice build up again”source ↗

“maintenance always takes days to come check things up so i’m trying to decide what’s the best way to go over this”source ↗

ThinkNeck6612 · r/hvacadvice · 2 upvotes

“At the start of summer (June) I asked our landlord to send someone to service our HVAC because it wasn’t properly cooling the apt.”source ↗

“It’s Sept now. It’s still hot out and I noticed it’s not able to properly cool the apt again.”source ↗

“I doubt my landlord wants to get a new unit, but I’m going to text him anyway that we likely need more refrigerant.”source ↗

tobasco__ · r/hvacadvice · 2 upvotes

“Just closed on a house in Los Angeles, got keys, and the AC doesn’t seem to be working.”source ↗

“The thermostat is reading correctly and says that cooling is on, we can hear the fan being on, but there’s barely any air flow that we can feel, and it doesn’t seem to be cooled air either.”source ↗

buddyrtc · r/hvacadvice · 2 upvotes

“We moved into a new construction house in April this year, and we’ve been having a lot of issues with the AC system.”source ↗

“We’re not happy with how many problems we’ve had in such a short period of time, and we’re worried that the repairs are just getting us past the one-year full warranty.”source ↗

lifting_cars · r/hvacadvice · 2 upvotes

“The entire copper line froze so I shut off the (HVAC) unit for an about a day to allow it to thaw.”source ↗

“The flange that is frosting can get a lot of frost buildup at times.”source ↗

“I just noticed this last this me the water leaking out at the top of the unit”source ↗

mightymouse1971 · r/hvacadvice · 2 upvotes

“I am on my 3rd unit in 4 years. Each over was covered by warranty but I'm sure this one will not be. Each one failed exactly 1 year after installation due to pinhole leak in the coil at solder join.”source ↗

“Iv hit my breaking point with Frigidaire products and how quickly each one has bit the dust almost 1 year apart.”source ↗

Grizzel898 · r/hvacadvice · 2 upvotes

“My home AC is broken , the compressor is shot and part is a week out.”source ↗

Several_Stuff_6695 · r/hvacadvice · 2 upvotes

“Ac stopped working last night. I’m getting error code 201.”source ↗

slumpbuster05 · r/hvacadvice · 2 upvotes

“My AC is still not cooling to temperature consistently, but even when it does my thermostat does not register it.”source ↗

“My ac is running 24/7 because it thinks it isn't reaching the goal temperature.”source ↗

“If I try to explain the thermostat reading wrong it's deemed as no big deal, and if I say the AC is running 24/7 I get blamed for setting it too low.”source ↗

LeadingZombie5845 · r/hvacadvice · 2 upvotes

“So for about two weeks now I’ve noticed my house hasn’t been feeling as cold as usual so I’ve been watching the ac and it’s coils and I’ve noticed on most average on/off cycles about an inch of ice forms on the bottom area of the a frame coils”source ↗

“back in march it froze over completely and we had an hvac tech come over and did mention there was a small leak somewhere so stop leak was added and it had been fine since then til now more recently.”source ↗

lugnutat24 · r/hvacadvice · 2 upvotes

“We’ve probably gone through around 5 compressors in that time. The compressors are covered by warranty but I’m stuck paying for service and refrigerant.”source ↗

“I’m finally trying to figure out whether there’s an underlying installation issue instead of continuing to replace compressors.”source ↗

MacG205 · r/hvacadvice · 2 upvotes

“This HVAC is covered by our 10-year parts and labor warranty BUT This Unit is out of Warranty because it wasn't registered.”source ↗

“I Do not know who register this? Builder? Installer? Owner?”source ↗

“The Main Issue with the Air Conditioner is that the Compressor is Grounded out and Tripping the Breaker.”source ↗

“Anyone Please advise if this is normal and what the causes may be and whether we should file a complaint suit with the builder.”source ↗

nataliepaek · r/hvacadvice · 2 upvotes

“What the hell? Copper is worth SOMETHING but is it really worth doing it in broad daylight now?”source ↗

MacForker · r/hvacadvice · 2 upvotes

“I have a two year old Pioneer Mini Split with 4 heads that are all leaking with what seems to be oil present at the leak. (Leaks seem to be only at the outside main unit)”source ↗

“Struggling to find a repair service that knows enough about mini splits?”source ↗

kehrless · r/hvacadvice · 2 upvotes

“it’s now gotten weirder?”source ↗

Inevitable-Race1274 · r/hvacadvice · 1 upvotes

“Woke up this morning freezing it was 62f when it’s set for 70f.”source ↗

CoralReefLyfe · r/hvacadvice · 1 upvotes

“Any advice on what could the problem be?”source ↗

Diligent_Eye_9291 · r/hvacadvice · 1 upvotes

“Thermostat is set to 72 but showing 77 and climbing. This noise happens about every 60 seconds or so.”source ↗

tacobaco32 · r/hvacadvice · 1 upvotes

“Our thermostat (Emerson Series 80 non-programmable) was working just earlier this morning, and after I turned the cooling off to clean the unit, I came back to find that the display was weird, half of the display segments were off and the rest of the display was fading.”source ↗

“when I placed the batteries back into it, the display started flashing like in the video and won't respond to anything, no backlight, no factory reset, no power cycling, and it doesn't turn on our air conditioning.”source ↗

paperofbelief · r/hvacadvice · 1 upvotes

“Okay, we do own the house. I’ll try and call someone but I’m not sure if I can get someone to come out this late.”source ↗

oriondavis · r/hvacadvice · 1 upvotes

“Alrighty, not sure if I’ll be able to pay for it but I’ll try and call someone for a second opinion”source ↗

oriondavis · r/hvacadvice · 1 upvotes

“Today I noticed it's suddenly fluctuating between 74 and 73 upstairs. The air continues to blow cold, but the house just won't cool down.”source ↗

throttlebottle05 · r/hvacadvice · 1 upvotes

“We opened a room that is often closed and stays very hot. We left the door open all night. My initial thought was that was the problem. I've since closed that door back. But it's continuing to hover at around 74 even though it's been running all day.”source ↗

throttlebottle05 · r/hvacadvice · 1 upvotes

“I kept 2 of my zones in my house at 80 last night but woke up to both of them at 72. This means that the AC overcooled those zones last night.”source ↗

iPhillice · r/hvacadvice · 1 upvotes

“Got home and my unit was struggling to meet SP.”source ↗

“Decided to go outside and check out my condenser and found it froze up.”source ↗

“Technician arrives and has come to the conclusion that the TXV isn’t allowing enough refrigerant back to the evaporator, can someone explain?”source ↗

sydr0xx · r/hvacadvice · 1 upvotes

“Does anyone have any ideas for ways that I can safely temporarily capture the water so that I can run the unit once or twice a day to stay at least a little more comfy?”source ↗

Fun-Rest-1969 · r/hvacadvice · 1 upvotes

“This year (2026) the inside coils in the furnace froze up during a super hot period.”source ↗

“Then I noticed the unit stopped blowing cold air again.”source ↗

boomeriese · r/hvacadvice · 1 upvotes

“Its not cooling at all… stats from diagnostics: 81°F room → 82°F indoor coil 77°F outside → 79°F outdoor coil Compressor reporting 57 Hz”source ↗

IKETHEPIKER · r/hvacadvice · 1 upvotes

“Sorry man that's like the worst feeling going through all of that and then it just not doing anything. :(”source ↗

FiRE-CPA · r/hvacadvice · 1 upvotes

“I do not know how to get the unit open to expose the wires.”source ↗

Southernms · r/hvacadvice · 1 upvotes

“I do not feel comfortable when anything that is electrical.”source ↗

Southernms · r/hvacadvice · 1 upvotes

“I replaced the 4” filter just before this problem started.”source ↗

mightymouse1971 · r/hvacadvice · 1 upvotes

“Came home to a warm house. Should I just let it defrost?”source ↗

Waste_Particular_981 · r/hvacadvice · 1 upvotes

“Two months later they have replaced the same compressor 4 times now. They can't seem to figure out what's going on.”source ↗

“Every time they replace the compressor about 10 to 14 days later the compressor goes bad again.”source ↗

“why would the compressor start over heating after 2 weeks consistently and not the day after they first install it.”source ↗

papoptcg · r/hvacadvice · 1 upvotes

“Hi, my current Carrier 2 Ton (10 YO, 2016 model) was not throwing cold air.”source ↗

“1st Technician (local handyman) told me it was bad compressor and gave me quote of $1900.”source ↗

“2nd Technician told me there is a leak in the coolant pipe and he did show me where the leak was.”source ↗

“So I've decided to change the whole unit, I have two option:”source ↗

Practical_Essay_5829 · r/hvacadvice · 1 upvotes

“when the ac goes out at night it is absolute torture.”source ↗

Hacksmith103 · r/hvacadvice · 1 upvotes

“Lately, the issue has happening every 2-3 weeks. The maintenance guy at my apartment can't figure it out. He fixes it temporarily every time **but two weeks later, the AC is not cooling again.**”source ↗

AlyssaDangW · r/hvacadvice · 1 upvotes

“I'm kind of worried I won't be able to help with information since I don't have access to the AC maintenance closet. It's locked due to apartment policy.”source ↗

AlyssaDangW · r/hvacadvice · 1 upvotes

“With the ac running, every 10-15 minutes I’ll notice the airflow briefly decrease at the supply vents and the flow gets quiet like it’s about to shut off, then it ramps back up and remains steady.”source ↗

Life-uhfindsaway · r/hvacadvice · 1 upvotes

“It’s just in general I notice it about that often. Sometimes maybe 20-30 mins before it does it. Just ramps down then up.”source ↗

Life-uhfindsaway · r/hvacadvice · 1 upvotes

“We have been surviving with a window unit in the bedroom so thankfully I haven’t had to leave. But same here 85 downstairs and 87 upstairs on the hottest day.”source ↗

jennywenny21 · r/hvacadvice · 1 upvotes

“The motor spins freely. No weird noises or anything, just stopped working overnight”source ↗

slumpbuster05 · r/hvacadvice · 1 upvotes

“The unit take 15-20 min running at normal amps then get nasty sounding and climbs to high amps and cuts out”source ↗

waden_99 · r/hvacadvice · 1 upvotes

“A recharge every year is a sign of a leak, for sure.”source ↗

Civil_Visit_7446 · r/hvacadvice · 1 upvotes

“It just needs to be replaced, idk what else you can do tbh”source ↗

syrianfries · r/hvacadvice · 1 upvotes

“Said they came home this evening around 10:00 PM and went to turn the thermostat down to 74. Noticed the thermostat was reading 79 and cool mode showing as it should.”source ↗

“Unit in the attic can be heard to be on but the outside unit is not turning on.”source ↗

MacCoryAW · r/hvacadvice · 1 upvotes

“When I go outside the unit is humming but the big fan is not turning.”source ↗

Ready-Stuff-8213 · r/hvacadvice · 1 upvotes

“Every summer either I or someone I know experiences a capacitor dying on them.”source ↗

HoOkAySo · r/hvacadvice · 1 upvotes

“It started leaking on the left side so I called the contractor to come back and take a look.”source ↗

“A few hours later, the right side is leaking now.. Also whenever I turn the a/c on, I hear a gurgling sound in the beginning.”source ↗

“I wish I knew how to fix it myself instead of having him come again and still not fix the issue sigh.”source ↗

“I’m also worried about water leaking in the walls.. really don’t want to deal with mold.”source ↗

dawnsteam · r/hvacadvice · 1 upvotes

“I keep wiping the water cause I don’t want to ruin my walls.”source ↗

dawnsteam · r/hvacadvice · 1 upvotes

“The first cycle of the day only lasts 2 minutes. Then the rest of the cycles are normal.”source ↗

coffee-linux · r/hvacadvice · 1 upvotes

“My Seasons brand wall AC has no power.”source ↗

“I tried to reset my breaker… but to be frank, I have no idea how this thing works and don’t understand the labeling.”source ↗

ericaleigh20 · r/hvacadvice · 1 upvotes

“I set the temperature to 65 and in six hours. It dropped 1° in temperature the AC unit outside Sounds like marbles rattling in a tin can and it’s hissing and I don’t remember it doing that before.”source ↗

“Property management came today and they claim that because they ran the temperature for one hour and it dropped 1° that everything’s fine”source ↗

Delicious_Appeal4828 · r/hvacadvice · 1 upvotes

“I already did that and it was only about 8 to 10° coming out of the vents cooler than the ambient temperature”source ↗

Delicious_Appeal4828 · r/hvacadvice · 1 upvotes

“They won’t let us change the filters they locked the HVAC cabinet”source ↗

Delicious_Appeal4828 · r/hvacadvice · 1 upvotes

“In all seriousness, thank you for the help and detailed troubleshooting tips !”source ↗

YouAintThatGuyPal · r/hvacadvice · 1 upvotes

“I woke up this morning and saw this. It sounds like it’s struggling to turn on now. Any ideas what it might be?”source ↗

FALLVESX · r/hvacadvice · 1 upvotes

“ive tried to turn the fan on and it sounds like its turning on then doesnt”source ↗

FALLVESX · r/hvacadvice · 1 upvotes

“I just tried this and it sounds like it's trying to turn on but doesn't”source ↗

FALLVESX · r/hvacadvice · 1 upvotes

“My ac isn’t working… Last week my thermostat went weird and shut off, I replaced the batteries but it killed those in a few hours, replaced them again and thought everything was fine. Now the outdoor hvac isn’t running, the fan in the bottom of the hvac indoor cabinet is but not the top piece with the the metal pipes…I really cannot afford someone expensive any suggestions?”source ↗

miaxbelladonna · r/hvacadvice · 1 upvotes

“Trying to figure out the correct way to go about getting this fixed. Should I get a 3rd party HVAC company to come take a look and quote what is wrong?”source ↗

ParticularPound7060 · r/hvacadvice · 1 upvotes

“That looks like someone backed into it with a vehicle. Is that next to your driveway?”source ↗

No-Zombie1004 · r/hvacadvice · 1 upvotes

“I already told the technician about the UA error code but he doesn't have any knowledge about it. When I asked if it could be a pcb or wiring issue, he asked there no way its that and that they dont get issues much.”source ↗

Fit-Sheepherder578 · r/hvacadvice · 1 upvotes

“Im not sure what else to do. There is only 1 daikin service center in my city and I can only ask them to send technicians since local technicians dont have any idea abt it.”source ↗

Fit-Sheepherder578 · r/hvacadvice · 1 upvotes

“I had a service company come out and seemed more interested in pushing a new system to be installed and making the oil that is present a huge ordeal. Repair for four flare points was 8k.”source ↗

kehrless · r/hvacadvice · 1 upvotes

“My AC has been flickering off and on like this for two hours.”source ↗

“Not sure what’s happening and want to know if it’s something my roommates and I can fix before making a call to the landlord.”source ↗

Inevitable-Race1274 · r/hvacadvice

“Could the melted plastic cause arc/shutoff?”source ↗

Next_Entrepreneur_43 · r/hvacadvice

“My AC is out. It’s 100 & It’s 86 F inside.”source ↗

“My father is ill and bedridden and cannot take too much heat.”source ↗

Southernms · r/hvacadvice

“Outdoor condenser failed. Indoor coil is original and working. Sub says both have to be replaced together. Owner wants outdoor only.”source ↗

LibertyBellHTX · r/hvacadvice

“The problem is that it keeps happening again. The system will work normally for a while, but then I’ll notice the apartment getting warmer.”source ↗

“The thermostat will say “Cool On” and I can hear the system/fan running, but there is little to no air coming from the vents.”source ↗

Sweetyogilover · r/hvacadvice

“somehow i hit something and it started leaking gas. I have no idea if its flammable or toxic, i tried calling dozens of numbers but none of them respond. Is this am actual emergency?”source ↗

Mx-anonymous19 · r/hvacadvice

“My AC was freezing and I had a technician come out and they informed me that my EXV was the issue. The part gets here Friday and replacement is set for Monday. My question is, should I just turn off “cool” and run the fan until it thaws and switch it back to cool the house or would it be better to run the house on just the fan.”source ↗

collapsedbook · r/hvacadvice

“Has anyone ever left a running garden hose to cool a compressor from going into thermal lockout for a few days unit compressor can be replaced?”source ↗

waden_99 · r/hvacadvice

“That’s the problem the compressor is going into lockout like it has dirty 410. Airflow and SH SC good but will start to pull high amps”source ↗

waden_99 · r/hvacadvice

“Does anyone have any experience with old R22 units leaking?”source ↗

“Our unit currently drips condensation into a bucket because the hose for it to drain outside got clogged or something.”source ↗

“Our backyard, where the unit it, has smelled like ammonia really bad for some reason, and I keep hearing the unit “popping” or “clicking” even with the unit switched off and breakers for it off.”source ↗

bpondaprairie · r/hvacadvice

“Thanks hoping it's the filter. Missed changing it on the first.”source ↗

Waste_Particular_981 · r/hvacadvice
r/autorepair2 people · September 2025 – September 2026

“Ok so, my sister was convinced she could do an oil change on my car. But when she was under there she started unscrewing the wrong thing.. it made a hissing sound and a little green liquid came out and she immediately retightened it.”source ↗

“Should I be worried? We ended up taking it to get an oil change at take 5 after that because I was not very confident in her skills after that incident.”source ↗

PrincessBubbleSwag · r/autorepair · 268 upvotes

“She's always had a guy to do it for her, she can't really do stuff like this herself, and she doesn't have the money for a mechanic at the moment.”source ↗

SiNoSe_Aprendere · r/autorepair · 1 upvotes
r/AskMechanics5 people · September 2026

“the A/C blows cold, then blows kinda warm, then kinda just alternates between ice cold and warm.”source ↗

number1dipshit · r/AskMechanics · 3 upvotes

“Yesterday my AC worked just fine, i parked the car and alldat, an hour later I went to my car to leave for work and my AC was making these sounds when it'd turn it on 1-2-3, now as you can see those don't work AT ALL anymore”source ↗

pikyissupercool · r/AskMechanics · 3 upvotes

“So, I bought a 1994 Toyota pickup a couple weeks ago, and so far the AC has been perfect. Today, driving home from work it stopped working.”source ↗

“So far I have swapped two new fuses into it, and each time, the ac works for 2-3 seconds, and blows the fuse again.”source ↗

Responsible_Chard_64 · r/AskMechanics · 1 upvotes

“Got it, once the car is running/driven the fan will come on, and if I start it again after the engine has been running a while it will just come on. This only happens when the engine is cold/has not been used overnight/hours”source ↗

ftpgshow · r/AskMechanics · 1 upvotes

“So I got my car from my brother when he want to college, its a 2015 Nissan Rogue, and the AC is broken.”source ↗

“Are there any ways for someone with no mechanical experience to diagnose and solve this or should I just go to an autoshop?”source ↗

Ok_Initial_7305 · r/AskMechanics · 1 upvotes
r/MechanicAdvice7 people · September 2026

“Complete compressor failure on my 200k mile 2015 Sienna. Had the refrigerant drained and found flakes in the filter from the bottom of the drier. My understanding is that if any amount of flakes are found that a full system flush is needed. Is this true, or are some flakes always expected on a 200k mile vehicle?”source ↗

“I’m here looking for advice on the flush from the firewall to the trunk. Those are long lines with lots of curves and an evaporator somewhere in between. I’d rather not take apart the dash if I can help it - can I reliably flush that whole rear system without taking the lines apart?”source ↗

Woodstein_Inc · r/MechanicAdvice · 3 upvotes

“Drived it for 10 mins earlier today then i smelled it and checked the hood and its smoking/steaming.”source ↗

“AC loses its cool when its idle for too long like in traffic or parking. And it cools back again when i rev the engine”source ↗

vulturerock_ · r/MechanicAdvice · 2 upvotes

“My primary question is if the portion that i have now circled in red should be turning with the engine running, or if that part is normally stationary.”source ↗

MassiveNightmare · r/MechanicAdvice · 1 upvotes

“So now I'm just trying to figure out what I did wrong before I pull everything apart again. This was probably 2 or 3 full days of work, so I don't want to do it all again and have the same thing happen.”source ↗

I_DRINK_URINE · r/MechanicAdvice · 1 upvotes

“The AC stopped working soon after getting the car, it wasn't blowing cold air.”source ↗

“After a month or so, the car would make the same vibrating sound randomly with the AC on.”source ↗

“Took in 3 separate occasions (the initial AC turning off, the vibrating a second time when the AC was not off, and this last time when AC cold air shut off and vibrating was loud) and still no fix to the rumble.”source ↗

Delsinfi · r/MechanicAdvice · 1 upvotes

“Why is my AC pushing cold air sometimes and sometimes it runs out and goes warm. It’s been like this for 2 months. It’s never freezing cold like it used to be.”source ↗

NewGuyOnTheBLock007 · r/MechanicAdvice · 1 upvotes

“While pulling in the other day he noticed the battery light was on and the steering was VERY hard to turn. I immediately suspected the main belt and when I checked it was broken.”source ↗

Sufficient-State380 · r/MechanicAdvice · 1 upvotes

“the mechanic said it seized up and that it would continue to break the belt if it wasn’t changed or bypassed”source ↗

Sufficient-State380 · r/MechanicAdvice · 1 upvotes

“It went out "all of a sudden" a couple weeks ago.”source ↗

“When I put my gauges on it there was only 25psi static pressure, so I added most of a 12oz can but the pressures just stay about 100 both high and low.”source ↗

MassiveNightmare · r/MechanicAdvice
r/PropertyManagement3 people · September 2026

“So long story short, my apartment air conditioning has been going out every week all summer.”source ↗

Agreeable_Classic580 · r/PropertyManagement · 3 upvotes

“They have been out to fix my air conditioning 10 times in 2 months. The weather was 100-110 outside for quite a few of those days.”source ↗

Agreeable_Classic580 · r/PropertyManagement · 1 upvotes

“You’re not the only person whose AC is out. Dealing with it myself. It sucks.”source ↗

BasePCar · r/PropertyManagement · 1 upvotes

“thirty days now without central air. Thirty days.”source ↗

“The portable unit they’ve provided isn’t enough to cool even one third of my unit so my unit is constantly at 77-86 degrees.”source ↗

bombonmeisadick · r/PropertyManagement
r/HomeImprovement1 person · September 2026

“our ac had been acting a little off for a while, but the house was still cool so i figured it could wait.”source ↗

“it finally stopped working during a heat wave and i ended up scrambling to find someone who could come out quickly.”source ↗

Oberlton_Nayelli · r/HomeImprovement · 2 upvotes
r/HomeMaintenance1 person · September 2026

“Ac has been having trouble keeping the house cool lately and someone mentioned it might be due to the fuses being burnt out (didn't even know these existed) do these look okay or do these look burnt out?”source ↗

New_Gur4641 · r/HomeMaintenance · 1 upvotes

Where this came up

People with this problem also raised