3 Easy Ways to Restore a Frozen Air Conditioner

Does the air emitting from your supply registers abruptly feel hot? Inspect the indoor component of your air conditioner. This component is located inside your furnace or air handler, if you use a heat pump. If there’s water leaking onto the floor, there might be ice on the evaporator coil. The AC coil in the unit might have frosted over. You’ll need to defrost it before it can cool your house again.

Here’s the things you should do. If you can’t get the coil defrosted, Freschi Service Experts is here to support you with air conditioning repair in Concord that includes a a 100% satisfaction guarantee.*

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

To get started—set the thermostat from “cool” to “off.” This prevents cold refrigerant from moving to the outdoor compressor, which could harm it and result in a pricey repair.

After that, switch the fan from “auto” to “on.” This produces hot airflow over the frozen coils to help them defrost faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It might take under an hour or the better part of a day for the ice to defrost, depending on the level of the ice. While you’re waiting, keep an eye on the condensate pan under the AC unit. If the drain line is clogged, it may spill over as the ice melts, potentially resulting in water damage.

Step 2: Pinpoint the Trouble

Insufficient airflow is a primary reason for an AC to freeze up. Here’s how to figure out the issue:

  • Inspect the filter. Low airflow through a dirty filter could be the problem. Check and put in a new filter each month or once you notice dust buildup.
  • Open any shut supply vents. Your home’s supply registers should be open always. Shutting vents reduces airflow over the evaporator coil, which can result in it freezing.
  • Look for covered return vents. These typically don’t use moveable louvers, but furniture, rugs or curtains can still cover them.
  • Insufficient refrigerant: While airflow restrictions are the most frequent culprit, your air conditioner could also have insufficient refrigerant. Depending on its age, it may have Freon® or Puron®. Insufficient refrigerant necessitates professional support from a certified HVAC technician. H2: Step 3: Call an HVAC Pro at Freschi Service Experts

If inadequate airflow doesn’t appear to be the issue, then another issue is making your AC freeze up. If this is what’s occurring, merely defrosting it won’t fix the issue. The evaporator coil will probably continually freeze unless you fix the underlying symptom. Get in touch with an HVAC tech to look for issues with your air conditioner, which could include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t get used up. Insufficient refrigerant is a sign of a leak somewhere. Only a technician can find the leak, repair it, and recharge the system to the proper amount.
  • Grimy evaporator coil: If dust builds up on the coil, air can’t get to it, and it’s likely to freeze.
  • Broken blower: A faulty motor or unbalanced fan might stop airflow over the evaporator coil.

If your AC freezes up, get in touch with the NATE-certified Experts at Freschi Service Experts to take care of the problem. We have lots of experience helping homeowners troubleshoot their air conditioners, and we’re confident we can get things operating again in no time. Contact us at 925-384-1303 to schedule air conditioning repair in Concord 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.

Contact Us