Get Your Frozen Air Conditioner Working Again with These 3 Easy Tips

Does the air coming from your supply registers abruptly seem warm? Inspect the indoor part of your air conditioner. This part is housed within your furnace or air handler, if you rely on a heat pump. If there’s water seeping onto the floor, there could be ice on the evaporator coil. The AC coil in the system could have frozen over. You’ll need to defrost it before it can cool your home again.

Here’s the things you should do. If you can’t get the coil frost-free, Service Experts Commercial HVAC is here to assist you with air conditioning repair in Toronto that includes a 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 halts cold refrigerant from going to the outdoor compressor, which could hurt it and result in a pricey repair.

After that, move the fan from “auto” to “on.” This makes hot airflow over the crystallized coils to make them melt faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.

It could take under an hour or the better part of a day for the ice to defrost, depending on the level of the buildup. While you’re waiting, watch the condensate pan underneath the AC unit. If the drain line is clogged, it can overflow as the ice melts, possibly resulting in water damage.

Step 2: Diagnose the Situation

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

  • Look at the filter. Poor airflow through a filthy filter could be the issue. Inspect and change the filter once a month or as soon as you observe dust accumulation.
  • Open any sealed supply vents. Your residence’s supply registers should remain open all the time. Sealing vents decreases airflow over the evaporator coil, which can lead it to freeze.
  • Be on the lookout for blocked return vents. These usually don’t use moveable louvers, but furniture, rugs or curtains can still cover them.
  • Low refrigerant: While airflow restrictions are the most frequent culprit, your air conditioning may also not have enough refrigerant. Depending on when it was installed, it may use Freon®. Not enough refrigerant calls for skilled help from a certified HVAC specialist. H2: Step 3: Get in Touch with an HVAC Tech at Service Experts Commercial HVAC

If poor airflow doesn’t seem to be the trouble, then another issue is leading your AC freeze. If this is the case, just letting it melt won’t fix the problem. The evaporator coil will probably keep freezing unless you fix the underlying problem. Contact an HVAC professional to look for problems with your air conditioner, which might include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t run out. Low refrigerant means there’s a leak somewhere. Only a technician can locate the leak, repair it, and recharge the air conditioner to the correct amount.
  • Dirty evaporator coil: If dust collects on the coil, air can’t flow over it, and it’s likely to freeze.
  • Broken blower: A defective motor or unbalanced fan might halt airflow over the evaporator coil.

The next time your AC freezes up, get in touch with the ACE-certified techs at Service Experts Commercial HVAC to take care of the issue. We have lots of experience helping homeowners check their air conditioners, and we’re certain we can get things running again in no time. Contact us at 289-201-2346 to schedule air conditioning repair in Toronto 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.