3 Simple Steps to Fix a Frozen Air Conditioner

Does the air flowing from your supply registers suddenly seem warm? Inspect the indoor part of your air conditioner. This part is situated inside your furnace or air handler, if you rely on a heat pump. If there’s water dripping onto the floor, there may be ice on the evaporator coil. The AC coil inside the system might have frozen over. You’ll need to melt it before it can cool your residence again.

Here’s the steps you should take. If you can’t get the coil back to normal, Service Experts Heating & Air Conditioning is here to support you with air conditioning repair in Edmonton backed by a 100% satisfaction guarantee.*

Step 1: Turn the Air Conditioning Off and the Blower On

To get started—set the thermostat from “cool” to “off.” This prevents chilly refrigerant from going to the outdoor compressor, which could damage it and result in a costly repair.

Next, move the fan from “auto” to “on.” This makes hot airflow over the frosty coils to force them to defrost faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It could take under an hour or the majority of the day for the ice to melt, depending on the degree of the ice. While you’re waiting, check the condensate pan below the AC unit. If the drain line is clogged, it can spill over as the ice melts, possibly causing water damage.

Step 2: Pinpoint the Issue

Poor airflow is a leading cause for an AC to frost over. Here’s how to get to the bottom of the problem:

  • Check the filter. Low airflow through a dusty filter could be to blame. Inspect and change the filter once a month or immediately when you observe dust accumulation.
  • Open any closed supply vents. Your residence’s supply registers should stay open always. Shutting vents limits airflow over the evaporator coil, which may lead it to freeze.
  • Be on the lookout for blocked return vents. These typically don’t come with moveable louvers, but furniture, rugs or curtains can still block them.
  • Insufficient refrigerant: While airflow restrictions are the most typical culprit, your air conditioning might also be low on refrigerant. Depending on when it was installed, it may have Freon®. Insufficient refrigerant calls for pro attention from a certified HVAC technician. H2: Step 3: Call an HVAC Professional at Service Experts Heating & Air Conditioning

If low airflow doesn’t appear to be the problem, then something else is leading your AC frost over. If this is what’s going on, just defrosting it won’t fix the trouble. The evaporator coil will probably keep freezing unless you take care of the underlying issue. Call an HVAC tech to look for troubles with your air conditioner, which may include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t get used up. Insufficient refrigerant signals a leak somewhere. Only a professional can locate the leak, mend it, and recharge the air conditioning to the appropriate amount.
  • Dirty evaporator coil: If grime collects on the coil, air can’t flow over it, and it’s likely to freeze.
  • Malfunctioning blower: A defective motor or unbalanced fan might prevent airflow over the evaporator coil.

The next time your AC freezes up, get in touch with the ACE-certified techs at Service Experts Heating & Air Conditioning to fix the problem. We have a lot of experience helping homeowners check their air conditioners, and we’re certain we can get things running again fast. Contact us at 587-404-0790 to get air conditioning repair in Edmonton with us now.


*Not applicable to the Advantage Program. See your signed Advantage Program agreement for full details and exclusions. 100% Satisfaction Guarantee is subject to certain restrictions and limitations as set forth in the applicable Terms and Conditions.

chat now widget box