Repair Your Frozen Air Conditioner with These 3 Fast Tips

Does the air flowing from your supply registers unexpectedly feel not cold enough? Look at the indoor portion of your air conditioner. This component is situated within your furnace or air handler, if you use a heat pump. If there’s water dripping onto the floor, there might be frost on the evaporator coil. The AC coil in the system could have frosted over. You’ll need to thaw it before it can cool your home again.

Here’s the steps you should take. If you can’t get the coil frost-free, Neal Harris Service Experts is here to support you with air conditioning repair in Kansas City backed by a 100% satisfaction guarantee.*

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

First things first—move the thermostat from “cool” to “off.” This halts cold refrigerant from going to the outdoor compressor, which could hurt it and cause a pricey repair.

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

It may take less than an hour or the majority of the day for the ice to melt, depending on the extent of the buildup. While you’re waiting, keep an eye on the condensate pan underneath the AC unit. If the drain line is obstructed, it could overflow as the ice melts, possibly causing water damage.

Step 2: Diagnose the Situation

Bad airflow is a main cause for an AC to become frozen. Here’s how to figure out the problem:

  • Look at the filter. Insufficient airflow through a filthy filter could be the issue. Inspect and replace the filter once a month or immediately when you notice a layer of dust.
  • Open any closed supply vents. Your house’s supply registers should be open constantly. Shutting vents reduces airflow over the evaporator coil, which may result in it freezing.
  • Check for obstructed return vents. These usually don’t come with moveable louvers, but furniture, rugs or curtains can still obstruct them.
  • Not enough refrigerant: While airflow restrictions are the most typical cause, your air conditioning may also not have enough refrigerant. Depending on when it was installed, it may use Freon® or Puron®. Not enough refrigerant requires skilled attention from a certified HVAC specialist. H2: Step 3: Get in Touch with an HVAC Pro at Neal Harris Service Experts

If inadequate airflow doesn’t seem to be the problem, then another issue is leading your AC freeze up. If this is what’s happening, merely defrosting it won’t repair the issue. The evaporator coil will probably keep freezing unless you take care of the main symptom. Get in touch with an HVAC professional to check for troubles with your air conditioner, which may include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t run out. Not enough refrigerant means there’s a leak somewhere. Only a tech can locate the leak, mend it, and recharge the system to the appropriate concentration.
  • Filthy evaporator coil: If dust builds up on the coil, air can’t reach it, and it’s liable to freeze.
  • Nonfunctional 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 specialists at Neal Harris Service Experts to fix the situation. We have a lot of experience helping homeowners check their air conditioners, and we’re certain we can get things working again fast. Contact us at 816-787-0500 to get air conditioning repair in Kansas City with us today.


*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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