3 Fast Steps to Fix a Frozen Air Conditioner

Does the air flowing from your supply registers suddenly seem hot? Look at the indoor part of your air conditioner. This component is housed within your furnace or air handler, if you rely on a heat pump. If there’s water dripping onto the floor, there may be ice on the evaporator coil. The AC coil inside the equipment could have frosted over. You’ll need to thaw 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, Church Services is here to support you with air conditioning repair in Houston that includes a 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 halts chilly refrigerant from going to the outdoor compressor, which could harm it and lead to a pricey repair.

After that, switch the fan from “auto” to “on.” This produces heated airflow over the crystallized coils to make them thaw faster. Remember to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It can take under an hour or most of the 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 clogged, it can spill over as the ice melts, possibly causing water damage.

Step 2: Troubleshoot the Problem

Low airflow is a main reason for an AC to frost over. Here’s how to figure out the issue:

  • Exmaine the filter. Low airflow through a filthy filter could be the culprit. Inspect and put in a new filter each month or as soon as you notice dust buildup.
  • Open any sealed supply vents. Your home’s supply registers should be open always. Sealing vents reduces airflow over the evaporator coil, which may result in it freezing.
  • Be on the lookout for blocked return vents. These typically don’t use adjustable louvers, but furniture, rugs or curtains can still cover them.
  • Not enough refrigerant: While airflow restrictions are the most frequent culprit, your air conditioning could also not have enough refrigerant. Depending on its age, it may have Freon® or Puron®. Insufficient refrigerant requires skilled help from a certified HVAC tech. H2: Step 3: Contact an HVAC Expert at Church Services

If poor airflow doesn’t feel like the issue, then another issue is making your AC freeze. If this is what’s occurring, merely letting it melt won’t fix the issue. The evaporator coil will possibly keep freezing unless you take care of the main problem. Contact an HVAC professional to address issues with your air conditioner, which can include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run out. Low refrigerant indicates a leak somewhere. Only a professional can locate the leak, repair it, and recharge the system to the appropriate concentration.
  • Filthy evaporator coil: If dust accumulates on the coil, air can’t reach it, and it’s likely to freeze.
  • Nonfunctional blower: A broken motor or unbalanced fan can halt airflow over the evaporator coil.

The next time your AC freezes up, get in touch with the NATE-certified technicians at Church Services to repair the problem. We have a lot of experience helping homeowners troubleshoot their air conditioners, and we’re sure we can get things working again fast. Contact us at 713-396-3760 to schedule air conditioning repair in Houston 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.

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