Letting an air conditioning coil unfreeze typically takes anywhere from one to four hours, depending significantly on the thickness of the ice accumulation and ambient environmental conditions. If you simply turn the cooling system off and leave the fan on auto, the natural warmth of your home will slowly melt the ice, which can take several hours. You can dramatically shorten this duration to around an hour or less by switching the thermostat fan setting from auto to on, which forces the indoor blower fan to continuously push room-temperature air across the frozen metal fins. It is vital to ensure that every last trace of ice has melted and the system components are completely dry before you attempt to switch the cooling mode back on. Restarting an air conditioner while ice still lingers inside the coil will instantly cause the remaining water to freeze solid again, compounding the problem and extending your downtime. Additionally, placing towels or a wet-dry vacuum around the indoor unit helps manage the substantial runoff water produced during a rapid thaw.
1 votes
Marked as accepted