3 Fast Ways to Repair a Frozen Air Conditioner

Does the air emitting from your supply registers unexpectedly feel warm? Look at the indoor component of your air conditioner. This piece is situated in your furnace or air handler, if you have a heat pump. If there’s water seeping onto the floor, there may be ice on the evaporator coil. The AC coil in the system might have frozen. You’ll need to defrost it before it can cool your house again.

Here’s what to do. If you can’t get the coil frost-free, A-PLUS Service Experts is here to support you with air conditioning repair in Waldorf that includes a a 100% satisfaction guarantee.*

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

To get started—move the thermostat from “cool” to “off.” This prevents chilly refrigerant from flowing to the outdoor compressor, which could harm it and cause an expensive repair.

Then, switch the fan from “auto” to “on.” This creates hot airflow over the frozen coils to make them melt faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.

It can take less than an hour or most of the day for the ice to defrost, depending on the degree of the ice. While you’re waiting, watch the condensate pan underneath the AC unit. If the drain line is blocked, it may spill over as the ice melts, potentially resulting in water damage.

Step 2: Troubleshoot the Issue

Insufficient airflow is a chief reason for an AC to become frozen. Here’s how to get to the bottom of the issue:

  • Look at the filter. Inadequate airflow through a clogged filter could be the problem. Check and put in a new filter each month or as soon as you notice a layer of dust.
  • Open any sealed supply vents. Your home’s supply registers should remain open constantly. Sealing vents decreases airflow over the evaporator coil, which can lead it to freeze.
  • Look for blocked return vents. These typically don’t have shiftable louvers, but furniture, rugs or curtains can still block them.
  • Low refrigerant: While airflow restrictions are the most common culprit, your air conditioner may also not have enough refrigerant. Depending on its age, it may have Freon® or Puron®. Low refrigerant calls for pro support from a certified HVAC specialist. H2: Step 3: Get in Touch with an HVAC Pro at A-PLUS Service Experts

If poor airflow doesn’t feel like the issue, then something else is leading your AC freeze. If this is the case, merely letting it melt won’t repair the trouble. The evaporator coil is likely to continually freeze unless you repair the root symptom. Contact an HVAC specialist to look for problems with your air conditioner, which can include:

  • Refrigerant leak: AC units keep using refrigerant, so it shouldn’t run low. Low refrigerant is a sign of a leak somewhere. Only a tech can pinpoint the leak, repair it, and recharge the system to the appropriate concentration.
  • Dirty evaporator coil: If dust collects on the coil, air can’t flow over it, and it’s likely to freeze.
  • Broken blower: A broken motor or unbalanced fan might prevent airflow over the evaporator coil.

The next time your AC freezes up, contact the NATE-certified techs at A-PLUS Service Experts to repair the situation. We have lots of experience helping homeowners check their air conditioners, and we’re sure we can get things operating again in no time. Contact us at 301-747-3140 to schedule air conditioning repair in Waldorf 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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