How do you winterize a window A/C to prevent mold buildup?
I need to leave my window units in the windows. There must be a way to keep them from smelling like mold. Not looking for a way to clean, but a way to prevent it from mold.
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This site has some good tips: https://stackheating.com/winterizing-hvac-ac-units/
"There are two schools of thought on how to protect your unit when not in use:
To make sure it can breathe during the winter months, make sure you leave a foot (12”) of the coil exposed to keep moisture from getting trapped under the cover and growing mold – this will cause a major health concern when you start it back up next year.
However, because the sides are exposed to fresh air, they’re also exposed to snow and ice. Precipitation could get inside the unit without difficulty but should melt and dry out by spring."
The best thing is remove and store inside during winter months.
Clean them up get all dirt out use a cloth with bleach on it then dry then put a cover on the out side and tie it on