3 Quick Steps to Repair a Frozen Air Conditioner

Does the air flowing from your supply registers abruptly seem hot? Check the indoor part of your air conditioner. This component is housed inside your furnace or air handler, if you have a heat pump. If there’s water dripping 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 home again.

Here’s the steps you should take. If you can’t get the coil back to normal, Service Experts Heating & Air Conditioning is here to help with air conditioning repair in Orlando that includes a a 100% satisfaction guarantee.*

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

To get started—set the thermostat from “cool” to “off.” This prevents chilled refrigerant from going to the outdoor compressor, which could damage it and cause an expensive repair.

Next, move the fan from “auto” to “on.” This creates warm airflow over the frozen coils to help them melt faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.

It could take not more than an hour or the majority of the day for the ice to melt, depending on the extent of the accumulation. While you’re waiting, watch the condensate pan under the AC unit. If the drain line is obstructed, it might create a mess as the ice melts, possibly creating water damage.

Step 2: Diagnose the Trouble

Not enough airflow is a prime explanation for an AC to become frozen. Here’s how to troubleshoot the problem:

  • Inspect the filter. Insufficient airflow through a filthy filter could be to blame. Look at and replace the filter monthly or once you observe dust buildup.
  • Open any shut supply vents. Your home’s supply registers should remain open all the time. Sealing vents reduces airflow over the evaporator coil, which can result in it freezing.
  • Be on the lookout for blocked return vents. These often don’t come with adjustable louvers, but furniture, rugs or curtains can still block them.
  • Insufficient refrigerant: While airflow restrictions are the most frequent culprit, your air conditioning might also have insufficient refrigerant. Depending on when it was installed, it may have Freon®. Not enough refrigerant necessitates pro support from a certified HVAC tech. H2: Step 3: Contact an HVAC Technician at Service Experts Heating & Air Conditioning

If low airflow doesn’t feel like the issue, then another problem is causing your AC freeze up. If this is what’s going on, just thawing it out won’t take care of the problem. The evaporator coil will probably freeze again unless you fix the underlying issue. Call an HVAC professional to check for problems with your air conditioner, which can include:

  • Refrigerant leak: AC units keep using refrigerant, so it shouldn’t run out. Not enough refrigerant is a sign of a leak somewhere. Only a pro can find the leak, fix it, and recharge the system to the proper level.
  • Grimy evaporator coil: If dirt accumulates on the coil, air can’t flow over it, and it’s likely to freeze.
  • Nonfunctional blower: A bad motor or unbalanced fan can halt airflow over the evaporator coil.

The next time your AC freezes up, contact the ACE-certified specialists at Service Experts Heating & Air Conditioning to fix the issue. We have years of experience helping homeowners troubleshoot their air conditioners, and we’re confident we can get things running again fast. Contact us at 407-329-7661 to schedule air conditioning repair in Orlando 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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