Fix Your Frozen Air Conditioner with These 3 Simple Tips

Does the air flowing from your supply registers abruptly appear warm? Check the indoor part of your air conditioner. This piece is located inside your furnace or air handler, if you use a heat pump. If there’s water dripping onto the floor, there may be frost on the evaporator coil. The AC coil inside the equipment may have frozen. 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 back to normal, A1 Chesney Service Experts is here to assist you with air conditioning repair in Calgary upheld by a 100% satisfaction guarantee.*

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

To begin—move the thermostat from “cool” to “off.” This stops chilly refrigerant from moving to the outdoor compressor, which could damage it and lead to a costly repair.

Next, switch the fan from “auto” to “on.” This produces hot 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 might take under an hour or the majority of the day for the ice to thaw, depending on the level of the ice. While you’re waiting, watch the condensate pan underneath the AC unit. If the drain line is obstructed, it might create a mess as the ice melts, possibly resulting in water damage.

Step 2: Pinpoint the Situation

Insufficient airflow is a primary explanation for an AC to freeze up. Here’s how to get to the bottom of the situation:

  • Exmaine the filter. Inadequate airflow through a filthy filter could be the problem. Check and put in a new filter once a month or once you notice dust buildup.
  • Open any sealed supply vents. Your house’s supply registers should remain open all the time. Shutting vents decreases airflow over the evaporator coil, which can cause it to freeze.
  • Check for blocked return vents. These typically don’t come with adjustable louvers, but furniture, rugs or curtains can still block them.
  • Not enough refrigerant: While airflow restrictions are the most common culprit, your air conditioning could also have insufficient refrigerant. Depending on its age, it may rely on Freon®. Insufficient refrigerant necessitates pro assistance from a certified HVAC technician. H2: Step 3: Call an HVAC Pro at A1 Chesney Service Experts

If poor airflow doesn’t feel like the problem, then another problem is leading your AC frost over. If this is what’s occurring, just defrosting it won’t fix the issue. The evaporator coil will possibly freeze again unless you repair the root symptom. Contact an HVAC technician to look for issues with your air conditioner, which might include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t run out. Low refrigerant signals a leak somewhere. Only a pro can find the leak, fix it, and recharge the system to the correct concentration.
  • Grimy evaporator coil: If grime accumulates on the coil, air can’t reach it, and it’s apt to freeze.
  • Nonfunctional blower: A broken motor or unbalanced fan could halt airflow over the evaporator coil.

If your AC freezes up, contact the ACE-certified technicians at A1 Chesney Service Experts to fix the trouble. We have a lot of experience helping homeowners check their air conditioners, and we’re certain we can get things operating again fast. Contact us at 587-315-5271 to schedule air conditioning repair in Calgary 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.

chat now widget box