3 Quick Steps to Repair a Frozen Air Conditioner

Does the air flowing from your supply registers unexpectedly appear not cold enough? Check the indoor component of your air conditioner. This piece is housed inside your furnace or air handler, if you have a heat pump. If there’s water dripping onto the floor, there may be frost on the evaporator coil. The AC coil within the system might have frosted over. You’ll need to defrost it before it can cool your home again.

Here’s the steps you should take. If you can’t get the coil frost-free, Service Experts Heating & Air Conditioning is here to help with air conditioning repair in Orlando upheld by a 100% satisfaction guarantee.*

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

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

After that, adjust the fan from “auto” to “on.” This creates warm airflow over the frozen coils to help them defrost faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.

It may take not more than an hour or most of the day for the ice to melt, depending on the extent of the ice. While you’re waiting, watch the condensate pan underneath the AC unit. If the drain line is blocked, it might create a mess as the ice melts, likely resulting in water damage.

Step 2: Pinpoint the Trouble

Not enough airflow is a prime explanation for an AC to frost over. Here’s how to troubleshoot the problem:

  • Inspect the filter. Insufficient airflow through a filthy filter could be to blame. Look at and put in a new filter monthly or immediately when you observe dust accumulation.
  • Open any shut supply vents. Your home’s supply registers should remain open all the time. Shutting vents reduces airflow over the evaporator coil, which might result in it freezing.
  • Be on the lookout for blocked return vents. These often don’t come with adjustable louvers, but furniture, rugs or curtains can still block them.
  • Insufficient refrigerant: While airflow restrictions are the most frequent culprit, your air conditioning could also not have enough refrigerant. Depending on when it was installed, it may rely on Freon® or Puron®. Insufficient refrigerant calls for skilled assistance from a certified HVAC specialist. H2: Step 3: Contact an HVAC Technician at Service Experts Heating & Air Conditioning

If insufficient airflow doesn’t feel like the trouble, then another issue is causing your AC freeze up. If this is what’s going on, just thawing it out won’t repair the trouble. The evaporator coil will possibly freeze again unless you take care of the underlying issue. Call an HVAC professional to check for problems with your air conditioner, which can include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run low. Not enough refrigerant is a sign of a leak somewhere. Only a technician can find the leak, fix it, and recharge the system to the proper level.
  • Filthy evaporator coil: If dust accumulates on the coil, air can’t get to it, and it’s apt to freeze.
  • Broken blower: A bad 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 techs at Service Experts Heating & Air Conditioning to fix the issue. We have years of experience helping homeowners troubleshoot their air conditioners, and we’re confident we can get things operating again fast. Contact us at 407-329-7661 to schedule air conditioning repair in Orlando 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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