What r/hvacadvice keeps coming back to
Complaints raised here by more than one person. One-off posts are not included.
183 recurring problems · 979 threads read · read since September 2026 · Reddit
Raised more than once here
Most people first.
- 60Vehicle cranks after fuel pump replacement but won't start“I have a blower motor issue which I’m diagnosing a bad blower motor but just wanting to get advice. I have an ECM motor which I checked for 240V going into the motor and a 24V signal and I get both. Condenser comes on but furnace does not. Any advice or I’m good to change out the motor?”
- 55How to fix a leaking water pipe in a tight space“Never had any issues with the boiler but I just noticed the leaking a couple days ago. PSI is normal. All the valves are in the right positions. What could be causing this? Please help!”
- 54How to handle a bad contractor who won't fix poor work“I foolishly paid the invoice before asking for photos or inspecting the job because I thought that it was straightforward and there was no way that it could be done so poorly as this.”
- 51Landlord built a fence around the AC and it broke“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.”
- 37How do I know if a contractor quote is fair?“4 Bids on a full system replacement. Help me decide and not get distracted by the noise.”
- 36Why are contractor and window replacement quotes so absurdly high?“As the title states I got quoted 33k for an AC unit and a heater.”
- 33How to find reliable contractors who actually show up“Most companies won’t install customer purchased equipment. Most will not guarantee the equipment if it’s purchased by you or warranty it either.”
- 33How to handle the financial and identity drop after leaving a career“I graduated this past May with a B.S. in Computer Science (I also have an A.S. in Information Technology). I’ve been building my portfolio and targeting Identity & Access Management (IAM/PAM), but the entry-level tech market right now feels completely broken.”
- 33Should I pay for appliance repair or fix it myself?“Hello there! Looking for some advice about whether something is reasonable or not.”
- 31How to get an entry level job with no experience“I haven't but when I applied for apprenticeships they repeatedly told me I lack experience....”
- 27How do I know if I can DIY a repair or need a pro?“I was quoted $2285 all in. Seems crazy to me but looking for insight.”
- 26How to find replacement parts for discontinued hardware“I've been trying to find proper OEM replacement ECM motors for the air handlers but can't find any that spin the correct direction.”
- 25How to clear a clogged AC condensate drain line“I haves 2 story house. AC is in attic with pvc drain line leading to upstairs bathroom sink. Drain pan has water , what do I troubleshoot to fix this?”
- 25Why do I feel so overwhelmed after starting a new job?“It’s my first day tomorrow at 7:30 am and I’m nervous as heck.”
- 24How to choose between different HVAC replacement quotes“Have gotten a few quotes from companies in my area with good reviews, looking to get some advice/opinions.”
- 23How to fix previous owner DIY nightmares“i had an electrician install a mini split for me. and this is how he left it. said he was going to come back. but never did. how bad is it?”
- 22Water keeps getting in the house during heavy rain“Water from the condensing coils is splashing around getting on the floor and wall walls.”
- 20Electrician installed an outlet instead of a generator inlet box“Brand new basement install, I don't know if my hvac tech is just lazy/does ugly work or if this setup is problematic/unsafe.”
- 19Why do small bathroom remodels cost so much?“I am looking to expand my rear patio and would like to move the unit about 7-10 feet to the side of my house to open up space. What would be a reasonable price range for this?”
- 18How to get a contractor to fix damage they caused“This summer, our living room ceiling collapsed because the AC pan was on a sloped away from the drain. My wife and I were denied by insurance, quoted $8500 for mold remediation, and ended up taking it upon ourselves to clean up the mess.”
What this forum worries about more than the rest
How much more often a topic shows up here than across every forum we read.
appliance troubleshooting15.7×furnace15.7×air conditioner15.7×hvac repair15.7×