3 Easy Steps for Fixing a Frozen Air Conditioner

Does the air flowing from your supply registers suddenly feel not cold enough? Look at the indoor portion of your air conditioner. This component is situated inside your furnace or air handler, if you use a heat pump. If there’s water dripping onto the floor, there could be crystals on the evaporator coil. The AC coil within the equipment might have frozen. You’ll need to melt it before it can cool your residence again.

Here’s the steps you should take. If you can’t get the coil defrosted, Levy & Son Service Experts is here to assist you with air conditioning repair in Dallas 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 stops chilly refrigerant from going to the outdoor compressor, which could harm it and result in an expensive repair.

Next, switch the fan from “auto” to “on.” This produces warm airflow over the frosty coils to help them thaw faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It could take not more than an hour or most of the day for the ice to defrost, depending on the degree of the accumulation. While you’re waiting, keep an eye on the condensate pan underneath the AC unit. If the drain line is blocked, it might overflow as the ice melts, potentially causing water damage.

Step 2: Pinpoint the Trouble

Not enough airflow is a main reason for an AC to become frozen. Here’s how to get to the bottom of the issue:

  • Exmaine the filter. Insufficient airflow through a dirty filter could be the issue. Look at and put in a new filter monthly or immediately when you see dust buildup.
  • Open any shut supply vents. Your house’s supply registers should stay open constantly. Closing vents reduces airflow over the evaporator coil, which may lead it to freeze.
  • Look for obstructed return vents. These often don’t have moveable louvers, but furniture, rugs or curtains can still obstruct them.
  • Low refrigerant: While airflow restrictions are the most frequent culprit, your system could also have insufficient refrigerant. Depending on when it was installed, it may rely on Freon® or Puron®. Not enough refrigerant calls for professional support from a certified HVAC technician. H2: Step 3: Call an HVAC Specialist at Levy & Son Service Experts

If low airflow doesn’t feel like the issue, then something else is leading your AC frost over. If this is what’s occurring, simply letting it melt won’t fix the trouble. The evaporator coil will probably freeze again unless you repair the underlying issue. Contact an HVAC technician to check for issues with your air conditioner, which can include:

  • Refrigerant leak: AC units recycle refrigerant, so it shouldn’t get used up. Insufficient refrigerant is a sign of a leak somewhere. Only a technician can pinpoint the leak, mend it, and recharge the system to the proper concentration.
  • Dirty evaporator coil: If dust collects on the coil, air can’t reach it, and it’s apt to freeze.
  • Broken blower: A faulty motor or unbalanced fan could prevent airflow over the evaporator coil.

If your AC freezes up, call on the NATE-certified Experts at Levy & Son Service Experts to repair the trouble. 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 469-250-0932 to schedule air conditioning repair in Dallas with us today.


*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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