3 Easy Steps for Fixing a Frozen Air Conditioner

Does the air emitting from your supply registers suddenly seem hot? Check the indoor component of your air conditioner. This component is housed within your furnace or air handler, if you rely on a heat pump. If there’s water leaking onto the floor, there might be crystals on the evaporator coil. The AC coil inside the unit might have frozen. You’ll need to thaw it before it can cool your house again.

Here’s what to do. If you can’t get the coil defrosted, Golden Seal Service Experts is here to support you with air conditioning repair in Saint Charles upheld by a 100% satisfaction guarantee.*

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

First things first—set the thermostat from “cool” to “off.” This halts chilly refrigerant from going to the outdoor compressor, which could harm it and lead to a costly repair.

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

It might take less than an hour or the majority of the day for the ice to melt, depending on the level of the ice. While you’re waiting, check the condensate pan below the AC unit. If the drain line is blocked, it might overflow as the ice melts, likely causing water damage.

Step 2: Pinpoint the Issue

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

  • Look at the filter. Poor airflow through a dusty filter could be to blame. Inspect and replace the filter monthly or once you see a layer of dust.
  • Open any shut supply vents. Your residence’s supply registers should remain open constantly. Closing vents decreases airflow over the evaporator coil, which might result in it freezing.
  • Check for covered return vents. These typically don’t come with shiftable louvers, but furniture, rugs or curtains can still obstruct them.
  • Insufficient refrigerant: While airflow restrictions are the most frequent cause, your system could also be low on refrigerant. Depending on its age, it may use Freon®. Low refrigerant requires professional attention from a certified HVAC specialist. H2: Step 3: Contact an HVAC Pro at Golden Seal Service Experts

If insufficient airflow doesn’t feel like the problem, then another problem is making your AC freeze. If this is what’s happening, just letting it melt won’t take care of the trouble. The evaporator coil will probably continually freeze unless you take care of the main symptom. Contact an HVAC technician to address problems with your air conditioner, which may include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t get used up. Not enough refrigerant means there’s a leak somewhere. Only a specialist can find the leak, mend it, and recharge the system to the appropriate amount.
  • Dirty evaporator coil: If dust collects on the coil, air can’t get to it, and it’s apt to freeze.
  • Malfunctioning blower: A defective motor or unbalanced fan could stop airflow over the evaporator coil.

The next time your AC freezes up, get in touch with the ACE-certified professionals at Golden Seal Service Experts to repair the trouble. We have lots of experience helping homeowners check their air conditioners, and we’re certain we can get things working again quickly. Contact us at 630-246-2698 to book air conditioning repair in Saint Charles 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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