Question by  jessica93 (9)

How do you thaw out a frozen HVAC unit?

Mine is covered with ice in the summertime and doesn't work properly.


Answer by  salsafoodie (3146)

You will need to turn of the frozen HVAC unit and then you will need to allow to thaw out for at least 24 hours.


Answer by  J36 (32)

The coils in an HVAC unit will freeze over in the summer if the temperature inside is being set too low. The refrigerant inside the coils gets too cold and will freeze. If you turn the unit off everything should defrost, a hair dryer will defrost it faster.


Answer by  titaniumman (12)

Turn off the AC and just run the Fan. Running the fan only will blow air over the coil and speed up the thaw process. This will not harm any parts as it will not be a rapid heating process. You should have a service technician check the refrigerant level.


Answer by  Arioch (190)

Turn the power off to the unit and let it thaw out naturally if you decide to speed up the process take great care as rapid heating may damage the pipes and other components, the reason its covered in ice is that its faulty possible due to low gas in the unit Id advise calling in an air conditioning engineer


Answer by  Timpridemore (149)

It sounds like your AC unit might be low on refrigerant. Contact an HVAC repairman to inspect your system. Some things you can check yourself are if the condensate drains are clogged, the condenser coil is clean and there is nothing obstructing airflow to the unit although this will not correct a low refrigerant issue.


Answer by  becca63 (325)

Sometimes you may need to shut it off and allow it to thaw out. This could take up to 24 hours depending on how much ice build up their is.


Answer by  kennethjgoodson (4903)

The best thing is to turn off the air conditioner for a couple of days and let it thaw out. You can turn it back on and just keep your eye on it to make sure ice is not building back up. Scrape it off if it does.

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