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

Does the air emitting from your supply registers unexpectedly feel warm? Check the indoor part of your air conditioner. This part is located inside your furnace or air handler, if you rely on a heat pump. If there’s water seeping onto the floor, there may be crystals on the evaporator coil. The AC coil in the system could have frosted over. You’ll need to defrost 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 flowing to the outdoor compressor, which could damage it and cause a costly repair.

After that, switch the fan from “auto” to “on.” This makes hot airflow over the frozen coils to force them to melt faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t start 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 accumulation. While you’re waiting, check the condensate pan underneath the AC unit. If the drain line is clogged, it could cause a mess as the ice melts, likely creating 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 issue:

  • Exmaine the filter. Low airflow through a dirty filter could be the culprit. Look at and change the filter monthly or immediately when you notice dust buildup.
  • Open any shut supply vents. Your house’s supply registers should be open all the time. Closing vents decreases airflow over the evaporator coil, which can result in it freezing.
  • Check for obstructed return vents. These typically don’t use shiftable louvers, but furniture, rugs or curtains can still block them.
  • Low refrigerant: While airflow restrictions are the most common cause, your air conditioning could also not have enough refrigerant. Depending on its age, it may have Freon® or Puron®. Low refrigerant necessitates skilled attention from a certified HVAC technician. H2: Step 3: Contact an HVAC Specialist at Epperson Service Experts

If inadequate airflow doesn’t seem to be the trouble, then another problem is causing your AC freeze. If this is the case, merely defrosting it won’t fix the problem. The evaporator coil will probably continually freeze unless you fix the main 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 tech can find the leak, fix it, and recharge the air conditioning to the appropriate concentration.
  • Filthy 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.

When your AC freezes up, call on the NATE-certified pros at Epperson Service Experts to repair the issue. We have lots of experience helping homeowners check their air conditioners, and we’re sure we can get things working again quickly. Contact us at 843-619-3781 to book 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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