3 Fast Ways to Restore a Frozen Air Conditioner

Does the air emitting from your supply registers suddenly seem warm? Check the indoor part of your air conditioner. This piece is located within your furnace or air handler, if you have a heat pump. If there’s water leaking onto the floor, there could be ice on the evaporator coil. The AC coil inside the equipment may have frozen. 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 back to normal, Calverley Service Experts is here to help with air conditioning repair in Fort Worth upheld by a 100% satisfaction guarantee.*

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

First things first—switch the thermostat from “cool” to “off.” This halts chilly refrigerant from moving to the outdoor compressor, which could harm it and cause a pricey repair.

Then, move the fan from “auto” to “on.” This produces hot airflow over the frosty coils to help them melt faster. Remember to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It could take less than an hour or most of the day for the ice to defrost, depending on the extent of the ice. While you’re waiting, keep an eye on the condensate pan underneath the AC unit. If the drain line is clogged, it could overflow as the ice melts, likely resulting in water damage.

Step 2: Troubleshoot the Issue

Poor airflow is a primary reason for an AC to frost over. Here’s how to troubleshoot the problem:

  • Inspect the filter. Insufficient airflow through a filthy filter could be to blame. Check and change the filter monthly or once you notice dust buildup.
  • Open any closed supply vents. Your home’s supply registers should stay open always. Shutting vents reduces airflow over the evaporator coil, which could lead it to freeze.
  • Be on the lookout for covered return vents. These usually don’t come with adjustable louvers, but furniture, rugs or curtains can still block them.
  • Not enough refrigerant: While airflow restrictions are the most common cause, your system might also have insufficient refrigerant. Depending on how old it is, it may have Freon® or Puron®. Insufficient refrigerant requires professional support from a certified HVAC tech. H2: Step 3: Contact an HVAC Tech at Calverley Service Experts

If inadequate airflow doesn’t seem to be the trouble, then another issue is leading your AC freeze up. If this is the case, just letting it melt won’t fix the issue. The evaporator coil is likely to freeze again unless you take care of the root cause. Get in touch with an HVAC tech to look for problems with your air conditioner, which could include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t get used up. Low refrigerant is a sign of a leak somewhere. Only a pro can locate the leak, mend it, and recharge the air conditioning to the correct level.
  • Dirty evaporator coil: If dust collects on the coil, air can’t reach it, and it’s apt to freeze.
  • Nonfunctional blower: A bad motor or unbalanced fan could prevent airflow over the evaporator coil.

If your AC freezes up, call on the NATE-certified Experts at Calverley Service Experts to repair the problem. We have years of experience helping homeowners check their air conditioners, and we’re confident we can get things operating again quickly. Contact us at 817-380-5647 to book air conditioning repair in Fort Worth with us now.


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