Said It Here

Why is condensation causing mold and ruining my appliances?

Unexplained indoor condensation creates active mold growth and damages appliances like microwaves by shorting them out. This ongoing moisture issue leaves homeowners anxious about their health and unsure whether they are dealing with harmless grime or dangerous mold.

Overview
People affected2 accounts across 1 forum
Workarounds found7 items attempted
Community agreement2 total upvotes

What people tried

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

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
    calling an HVAC technician to trace airflow and pressure issues
    Did this help you?
  2. 2
    hiring a mold inspector
    Did this help you?
  3. 3
    checking if the laundry exhaust vents outside
    Did this help you?
  4. 4
    checking if the wall is soft or spongy
    Did this help you?
  5. 5
    checking for a musty smell
    Did this help you?
  6. 6
    inspecting window caulking for dark specks and grime
    Did this help you?
  7. 7
    using a moisture meter on dry and wet days to compare levels
    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/HomeMaintenance2 people · September 2026

“Confirmed mold on the ceiling of a small upstairs laundry closet (roughly 4x7).”source ↗

“Condensation forms inside the microwave when it is not running. It eventually shorted out and the microwave died.”source ↗

OkStupid138 · r/HomeMaintenance · 1 upvotes

“Does this look like typical window condensation staining and old grime, or active mold that I should be worried about?”source ↗

“since I have health anxiety and I'm worried.”source ↗

simplyaless · r/HomeMaintenance · 1 upvotes

Where this came up

People with this problem also raised