Get Your Frozen Air Conditioner Working Again with These 3 Simple Tips

Does the air flowing from your supply registers unexpectedly feel warm? Check the indoor component of your air conditioner. This part is located in your furnace or air handler, if you have a heat pump. If there’s water leaking onto the floor, there may be frost on the evaporator coil. The AC coil within the system could have frosted over. You’ll need to melt it before it can cool your house again.

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

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

First things first—move the thermostat from “cool” to “off.” This prevents chilly refrigerant from moving to the outdoor compressor, which could damage it and result in a costly repair.

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

It can take not more than an hour or most of the day for the ice to thaw, depending on the degree of the ice. While you’re waiting, check the condensate pan underneath the AC unit. If the drain line is clogged, it may cause a mess as the ice melts, possibly resulting in water damage.

Step 2: Troubleshoot the Situation

Poor airflow is a primary explanation for an AC to become frozen. Here’s how to get to the bottom of the situation:

  • Exmaine the filter. Poor airflow through a dusty filter could be the culprit. Inspect and change the filter each month or once you observe dust buildup.
  • Open any shut supply vents. Your residence’s supply registers should be open all the time. Closing vents limits airflow over the evaporator coil, which can result in it freezing.
  • Check for covered return vents. These typically don’t come with moveable louvers, but furniture, rugs or curtains can still block them.
  • Low refrigerant: While airflow restrictions are the most common cause, your air conditioning might also have insufficient refrigerant. Depending on when it was installed, it may rely on Freon®. Low refrigerant calls for skilled attention from a certified HVAC technician. H2: Step 3: Contact an HVAC Tech at Epperson Service Experts

If inadequate airflow doesn’t appear to be the trouble, then another problem is leading your AC freeze. If this is what’s happening, merely defrosting it won’t fix the problem. The evaporator coil will possibly continually freeze unless you take care of the root issue. 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 get used up. Low refrigerant signals a leak somewhere. Only a professional can find the leak, fix it, and recharge the air conditioner to the correct amount.
  • Grimy evaporator coil: If grime collects on the coil, air can’t flow over it, and it’s likely to freeze.
  • Malfunctioning blower: A faulty motor or unbalanced fan may halt airflow over the evaporator coil.

If your AC freezes up, call on the ACE-certified Experts at Epperson Service Experts to take care of the issue. We have a lot of experience helping homeowners diagnose their air conditioners, and we’re sure we can get things working again quickly. Contact us at 843-619-3781 to get air conditioning repair in Hilton Head Island 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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