3 Quick Ways to Repair a Frozen Air Conditioner

Does the air coming from your supply registers suddenly appear warm? Look at the indoor component of your air conditioner. This component is situated inside your furnace or air handler, if you use a heat pump. If there’s water dripping onto the floor, there might be crystals on the evaporator coil. The AC coil in the system might have frozen over. You’ll need to melt it before it can cool your house again.

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

Step 1: Set the Air Conditioning to Off and the Blower On

First things first—switch the thermostat from “cool” to “off.” This stops chilled refrigerant from moving to the outdoor compressor, which could damage it and result in a pricey repair.

Next, move the fan from “auto” to “on.” This produces 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 trigger a cooling cycle.

It might take not more than an hour or the majority of the day for the ice to melt, depending on the degree of the accumulation. While you’re waiting, check the condensate pan underneath the AC unit. If the drain line is clogged, it may create a mess as the ice melts, potentially resulting in water damage.

Step 2: Troubleshoot the Problem

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

  • Look at the filter. Low airflow through a filthy filter could be the culprit. Check and put in a new filter once a month or once you see dust buildup.
  • Open any closed supply vents. Your residence’s supply registers should remain open always. Sealing vents limits airflow over the evaporator coil, which could result in it freezing.
  • Be on the lookout for covered return vents. These often don’t come with shiftable louvers, but furniture, rugs or curtains can still cover them.
  • Low refrigerant: While airflow restrictions are the most common culprit, your air conditioning may also be low on refrigerant. Depending on its age, it may use Freon®. Insufficient refrigerant requires professional assistance from a certified HVAC technician. H2: Step 3: Contact an HVAC Tech at Service Experts Heating & Air Conditioning

If poor airflow doesn’t appear to be the problem, then something else is causing your AC freeze up. If this is what’s occurring, simply thawing it out won’t fix the issue. The evaporator coil will possibly continually freeze unless you repair the main issue. Contact an HVAC tech to address troubles with your air conditioner, which may include:

  • Refrigerant leak: AC units keep using refrigerant, so it shouldn’t run low. Insufficient refrigerant indicates a leak somewhere. Only a tech can pinpoint the leak, fix it, and recharge the system to the proper concentration.
  • Dirty evaporator coil: If dust builds up on the coil, air can’t get to it, and it’s apt to freeze.
  • Nonfunctional blower: A broken motor or unbalanced fan might prevent airflow over the evaporator coil.

If your AC freezes up, get in touch with the ACE-certified technicians at Service Experts Heating & Air Conditioning to fix the situation. We have years of experience helping homeowners check their air conditioners, and we’re certain we can get things working again in no time. Contact us at 403-279-5760 to get air conditioning repair in Calgary with us right away.


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