3 Fast Ways to Restore a Frozen Air Conditioner

Does the air flowing from your supply registers unexpectedly feel warm? Inspect the indoor portion of your air conditioner. This piece is located inside your furnace or air handler, if you have a heat pump. If there’s water leaking onto the floor, there may be ice on the evaporator coil. The AC coil inside the system may have frozen over. You’ll need to thaw it before it can cool your house again.

Here’s the steps you should take. If you can’t get the coil frost-free, Winnipeg Supply Service Experts is here to help with air conditioning repair in Winnipeg upheld by a 100% satisfaction guarantee.*

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

To begin—set the thermostat from “cool” to “off.” This stops chilly refrigerant from going to the outdoor compressor, which could hurt it and lead to a pricey repair.

Then, switch the fan from “auto” to “on.” This produces hot airflow over the crystallized coils to help them thaw faster. Remember to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It can take not more than an hour or most of the day for the ice to thaw, depending on the extent of the buildup. While you’re waiting, keep an eye on the condensate pan below the AC unit. If the drain line is clogged, it might overflow as the ice melts, likely creating water damage.

Step 2: Troubleshoot the Problem

Poor airflow is a leading cause for an AC to become frozen. Here’s how to figure out the problem:

  • Exmaine the filter. Low airflow through a clogged filter could be the culprit. Check and change the filter monthly or once you see dust accumulation.
  • Open any closed supply vents. Your home’s supply registers should be open all the time. Sealing vents reduces airflow over the evaporator coil, which might lead it to freeze.
  • Look for covered return vents. These usually don’t come with adjustable louvers, but furniture, rugs or curtains can still obstruct them.
  • Insufficient refrigerant: While airflow restrictions are the most typical cause, your air conditioning could also not have enough refrigerant. Depending on how old it is, it may use Freon® or Puron®. Low refrigerant necessitates professional attention from a certified HVAC technician. H2: Step 3: Contact an HVAC Technician at Winnipeg Supply Service Experts

If insufficient airflow doesn’t appear to be the problem, then something else is leading your AC frost over. If this is what’s going on, merely defrosting it won’t take care of the problem. The evaporator coil will probably keep freezing unless you take care of the root cause. Contact an HVAC specialist to check for problems with your air conditioner, which might include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t run out. Not enough refrigerant is a sign of a leak somewhere. Only a tech can find the leak, repair it, and recharge the air conditioning to the correct level.
  • Filthy evaporator coil: If grime builds up on the coil, air can’t flow over it, and it’s likely to freeze.
  • Malfunctioning blower: A defective motor or unbalanced fan can halt airflow over the evaporator coil.

When your AC freezes up, contact the NATE-certified Experts at Winnipeg Supply Service Experts to fix the issue. We have lots of experience helping homeowners troubleshoot their air conditioners, and we’re certain we can get things working again quickly. Contact us at 204-800-0613 to schedule air conditioning repair in Winnipeg with us right away.


*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.

Contact Us