3 Quick Ways to Repair a Frozen Air Conditioner

Does the air coming from your supply registers unexpectedly appear hot? Check the indoor part of your air conditioner. This component is housed in your furnace or air handler, if you rely on a heat pump. If there’s water seeping onto the floor, there could be frost on the evaporator coil. The AC coil within the system might have frozen. You’ll need to defrost it before it can cool your house again.

Here’s the things you should do. If you can’t get the coil frost-free, Boehmers/Cronin Emery Home Services by Enercare is here to assist you with air conditioning repair in Kitchener upheld by a 100% satisfaction guarantee.*

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

To begin—move the thermostat from “cool” to “off.” This stops chilly refrigerant from flowing to the outdoor compressor, which could damage it and result in an expensive repair.

Then, move the fan from “auto” to “on.” This creates warm airflow over the frosty coils to help them defrost faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.

It could take less than an hour or the better part of a day for the ice to melt, depending on the extent of the accumulation. While you’re waiting, watch the condensate pan underneath the AC unit. If the drain line is clogged, it could create a mess as the ice melts, potentially resulting in water damage.

Step 2: Pinpoint the Issue

Poor airflow is a main explanation for an AC to freeze up. Here’s how to troubleshoot the situation:

  • Look at the filter. Poor airflow through a filthy filter could be the issue. Look at and change the filter monthly or as soon as you see dust accumulation.
  • Open any sealed supply vents. Your residence’s supply registers should remain open constantly. Sealing vents decreases airflow over the evaporator coil, which could result in it freezing.
  • Be on the lookout for covered return vents. These typically don’t come with shiftable louvers, but furniture, rugs or curtains can still cover them.
  • Low refrigerant: While airflow restrictions are the most common suspect, your air conditioning might also have insufficient refrigerant. Depending on its age, it may have Freon®. Insufficient refrigerant necessitates skilled help from a certified HVAC specialist. H2: Step 3: Contact an HVAC Pro at Boehmers/Cronin Emery Home Services by Enercare

If insufficient airflow doesn’t feel like the trouble, then something else is causing your AC frost over. If this is the case, just defrosting it won’t repair the problem. The evaporator coil is likely to keep freezing unless you fix the underlying cause. Call an HVAC pro to check for issues with your air conditioner, which could include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t run low. Not enough refrigerant signals a leak somewhere. Only a specialist can pinpoint the leak, mend it, and recharge the air conditioner to the correct amount.
  • Filthy evaporator coil: If dirt builds up on the coil, air can’t flow over it, and it’s apt to freeze.
  • Nonfunctional blower: A faulty motor or unbalanced fan may halt airflow over the evaporator coil.

The next time your AC freezes up, call on the ACE-certified pros at Boehmers/Cronin Emery Home Services by Enercare to repair the issue. We have years of experience helping homeowners diagnose their air conditioners, and we’re sure we can get things operating again fast. Contact us at 519-804-1617 to get air conditioning repair in Kitchener with us right away.


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