3 Simple Ways to Fix a Frozen Air Conditioner

Does the air coming from your supply registers suddenly seem hot? Inspect the indoor part of your air conditioner. This piece is situated in your furnace or air handler, if you use a heat pump. If there’s water seeping onto the floor, there might be frost on the evaporator coil. The AC coil inside the unit could have frozen over. You’ll need to defrost it before it can cool your home again.

Here’s what to do. If you can’t get the coil back to normal, Service Experts Heating & Air Conditioning is here to help with air conditioning repair in Cleveland that includes a a 100% satisfaction guarantee.*

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

To get started—switch the thermostat from “cool” to “off.” This prevents chilled refrigerant from flowing to the outdoor compressor, which could damage it and result in an expensive repair.

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

It can take not more than an hour or the better part of a day for the ice to melt, depending on the extent of the ice. While you’re waiting, watch the condensate pan under the AC unit. If the drain line is obstructed, it can cause a mess as the ice melts, potentially resulting in water damage.

Step 2: Pinpoint the Issue

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

  • Check the filter. Insufficient airflow through a clogged filter could be the issue. Look at and replace the filter once a month or once you observe a layer of dust.
  • Open any shut supply vents. Your residence’s supply registers should remain open constantly. Shutting vents decreases airflow over the evaporator coil, which might cause it to freeze.
  • Check for blocked return vents. These typically don’t use adjustable louvers, but furniture, rugs or curtains can still obstruct them.
  • Not enough refrigerant: While airflow restrictions are the most frequent culprit, your air conditioner could also not have enough refrigerant. Depending on its age, it may use Freon® or Puron®. Low refrigerant necessitates skilled help from a certified HVAC tech. H2: Step 3: Call an HVAC Tech at Service Experts Heating & Air Conditioning

If low airflow doesn’t seem to be the issue, then another issue is causing your AC freeze. If this is the case, simply defrosting it won’t repair the trouble. The evaporator coil will probably continually freeze unless you take care of the main problem. Get in touch with an HVAC technician to check for issues with your air conditioner, which might include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run low. Insufficient refrigerant means there’s a leak somewhere. Only a tech can find the leak, repair it, and recharge the air conditioner to the correct amount.
  • Grimy evaporator coil: If dust builds up on the coil, air can’t flow over it, and it’s likely to freeze.
  • Broken blower: A defective motor or unbalanced fan can prevent airflow over the evaporator coil.

The next time your AC freezes up, contact the NATE-certified technicians at Service Experts Heating & Air Conditioning to fix the issue. We have a lot of experience helping homeowners troubleshoot their air conditioners, and we’re certain we can get things running again fast. Contact us at 440-252-1375 to get air conditioning repair in Cleveland 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.

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