3 Easy Steps to Fix a Frozen Air Conditioner

Does the air coming from your supply registers abruptly appear warm? Look at the indoor part of your air conditioner. This component is located inside your furnace or air handler, if you rely on a heat pump. If there’s water seeping onto the floor, there might be frost on the evaporator coil. The AC coil within the system might have frozen over. You’ll need to melt it before it can cool your home again.

Here’s the steps you should take. If you can’t get the coil defrosted, Abbey Air Home Services by Enercare is here to assist you with air conditioning repair in Oakville backed by 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 moving to the outdoor compressor, which could damage it and cause an expensive repair.

After that, adjust the fan from “auto” to “on.” This produces warm airflow over the frosty coils to make them thaw faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It can take under an hour or the better part of a day for the ice to melt, depending on the degree of the buildup. While you’re waiting, check the condensate pan under the AC unit. If the drain line is obstructed, it might overflow as the ice melts, likely resulting in water damage.

Step 2: Diagnose the Problem

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

  • Exmaine the filter. Low airflow through a clogged filter could be the culprit. Inspect and change the filter each month or once you notice dust accumulation.
  • Open any shut supply vents. Your house’s supply registers should be open all the time. Shutting vents limits airflow over the evaporator coil, which may result in it freezing.
  • Look for covered return vents. These typically don’t have shiftable louvers, but furniture, rugs or curtains can still obstruct them.
  • Low refrigerant: While airflow restrictions are the most typical cause, your air conditioner may also have insufficient refrigerant. Depending on its age, it may rely on Freon®. Not enough refrigerant requires professional assistance from a certified HVAC specialist. H2: Step 3: Contact an HVAC Professional at Abbey Air Home Services by Enercare

If insufficient airflow doesn’t seem to be the problem, then something else is leading your AC freeze up. If this is what’s going on, just thawing it out won’t repair the issue. The evaporator coil will possibly keep freezing unless you repair the main problem. Get in touch with an HVAC pro to check for troubles with your air conditioner, which can include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run low. Low refrigerant means there’s a leak somewhere. Only a tech can find the leak, mend it, and recharge the air conditioner to the proper amount.
  • Grimy evaporator coil: If dust collects on the coil, air can’t flow over it, and it’s liable to freeze.
  • Broken blower: A defective motor or unbalanced fan may stop airflow over the evaporator coil.

When your AC freezes up, contact the ACE-certified professionals at Abbey Air Home Services by Enercare to take care of the problem. We have a lot of experience helping homeowners diagnose their air conditioners, and we’re sure we can get things running again fast. Contact us at 289-813-5566 to schedule air conditioning repair in Oakville with us now.


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