3 Quick Steps for Repairing a Frozen Air Conditioner

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

Here’s what to do. If you can’t get the coil back to normal, Service Experts Heating & Air Conditioning is here to assist you with air conditioning repair in Fort Myers that includes a a 100% satisfaction guarantee.*

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

To begin—set the thermostat from “cool” to “off.” This stops chilled refrigerant from flowing to the outdoor compressor, which could harm it and result in a pricey repair.

After that, switch the fan from “auto” to “on.” This makes hot airflow over the crystallized coils to make them thaw faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.

It can take less than an hour or the majority of the day for the ice to thaw, depending on the amount of the ice. While you’re waiting, watch the condensate pan underneath the AC unit. If the drain line is blocked, it might overflow as the ice melts, potentially creating water damage.

Step 2: Pinpoint the Problem

Insufficient airflow is a chief reason for an AC to freeze up. Here’s how to troubleshoot the situation:

  • Check the filter. Inadequate airflow through a dusty filter could be the culprit. Look at and put in a new filter once a month or immediately when you observe dust buildup.
  • Open any sealed supply vents. Your residence’s supply registers should remain open always. Closing vents decreases airflow over the evaporator coil, which can cause it to freeze.
  • Be on the lookout for obstructed return vents. These typically don’t use shiftable louvers, but furniture, rugs or curtains can still cover them.
  • Insufficient refrigerant: While airflow restrictions are the most common cause, your air conditioner could also not have enough refrigerant. Depending on when it was replaced, it may rely on Freon® or Puron®. Low refrigerant necessitates skilled attention from a certified HVAC tech. H2: Step 3: Contact an HVAC Tech at Service Experts Heating & Air Conditioning

If inadequate airflow doesn’t seem to be the issue, then something else is causing your AC freeze. If this is the case, just thawing it out won’t take care of the problem. The evaporator coil will probably freeze again unless you fix the main issue. Contact an HVAC technician to check for issues with your air conditioner, which can include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run out. Insufficient refrigerant means there’s a leak somewhere. Only a technician can find the leak, fix it, and recharge the system to the correct level.
  • Grimy evaporator coil: If dust collects on the coil, air can’t get to it, and it’s liable to freeze.
  • Nonfunctional blower: A bad motor or unbalanced fan can stop airflow over the evaporator coil.

When your AC freezes up, contact the NATE-certified Experts at Service Experts Heating & Air Conditioning to repair the trouble. We have years of experience helping homeowners diagnose their air conditioners, and we’re sure we can get things working again quickly. Contact us at 239-908-6991 to book air conditioning repair in Fort Myers 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.

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