Fix Your Frozen Air Conditioner with These 3 Easy Tips

Does the air flowing from your supply registers suddenly appear not cold enough? Check the indoor component of your air conditioner. This component is situated within your furnace or air handler, if you use a heat pump. If there’s water seeping onto the floor, there might be ice on the evaporator coil. The AC coil in the unit may have frosted over. You’ll need to defrost it before it can cool your house again.

Here’s what to do. If you can’t get the coil frost-free, Service Experts Heating & Air Conditioning is here to support you with air conditioning repair in Miami backed by a 100% satisfaction guarantee.*

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

To begin—switch the thermostat from “cool” to “off.” This halts cold refrigerant from going to the outdoor compressor, which could harm it and lead to a pricey repair.

Then, move the fan from “auto” to “on.” This produces warm airflow over the crystallized coils to force them to defrost faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It may take under an hour or the majority of the day for the ice to thaw, depending on the level of the buildup. While you’re waiting, check the condensate pan under the AC unit. If the drain line is obstructed, it might overflow as the ice melts, possibly resulting in water damage.

Step 2: Pinpoint the Problem

Low airflow is a main cause for an AC to freeze up. Here’s how to troubleshoot the issue:

  • Inspect the filter. Poor airflow through a dusty filter could be the culprit. Look at and replace the filter each month or immediately when you see dust buildup.
  • Open any sealed supply vents. Your house’s supply registers should be open all the time. Sealing vents decreases airflow over the evaporator coil, which could cause it to freeze.
  • Be on the lookout for blocked return vents. These usually don’t use shiftable louvers, but furniture, rugs or curtains can still cover them.
  • Not enough refrigerant: While airflow restrictions are the most typical culprit, your system may also be low on refrigerant. Depending on how old it is, it may rely on Freon® or Puron®. Insufficient refrigerant calls for pro help from a certified HVAC specialist. H2: Step 3: Call an HVAC Pro at Service Experts Heating & Air Conditioning

If poor airflow doesn’t appear to be the problem, then another problem is causing your AC freeze. If this is what’s occurring, just thawing it out won’t take care of the problem. The evaporator coil is likely to keep freezing unless you take care of the underlying symptom. Contact an HVAC specialist to look for troubles with your air conditioner, which might include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run low. Not enough refrigerant means there’s a leak somewhere. Only a specialist can pinpoint the leak, repair it, and recharge the air conditioning to the proper concentration.
  • Grimy evaporator coil: If grime collects on the coil, air can’t get to it, and it’s liable to freeze.
  • Malfunctioning blower: A faulty motor or unbalanced fan may stop airflow over the evaporator coil.

The next time your AC freezes up, contact the NATE-certified techs at Service Experts Heating & Air Conditioning to take care of the problem. 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 305-440-1505 to schedule air conditioning repair in Miami 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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