Frozen AC Coil FAQs FAQs
What do I do if my AC coil is frozen?
If your AC coil is frozen, immediately turn off your thermostat so you don’t cause further damage to your AC system. Change the air filter and give your AC several hours to thaw. Check to see if your AC has a “Defrost” or “Thaw” mode and follow the instructions on how to use it. If your AC coil freezes again after you’ve changed the air filter, it’s best to enlist the help of a certified HVAC technician.
Why is my AC line frozen?
A frozen evaporator coil may be caused by dirty air filters, broken fans or motors, leaking or low refrigerant levels, blocked condensate lines, dirty evaporator coils, or a broken thermostat.
How do you unfreeze an air conditioner?
You can unfreeze your air conditioner by turning off the thermostat and giving it a few hours to thaw. Replace the air filter while the system is thawing. You can also use your AC’s “Thaw” or “Defrost” mode, if it has one. Call an HVAC technician if your AC coils keep freezing, even after you’ve changed the air filter.
How do you thaw out frozen AC Coils?
You can thaw out frozen AC coils by turning off the AC and letting it sit for a few hours. Wait for the ice and moisture that’s gathered around the AC to melt and dry out. Do not try to scrape ice off of the coils or else you could risk damaging them.