Repair Your Frozen Air Conditioner with These 3 Fast Tips

Does the air emitting from your supply registers abruptly appear warm? Check the indoor part of your air conditioner. This part is housed in your furnace or air handler, if you use a heat pump. If there’s water seeping onto the floor, there could be ice on the evaporator coil. The AC coil inside the system could have frosted over. You’ll need to thaw it before it can cool your house again.

Here’s the steps you should take. If you can’t get the coil frost-free, McElroy Service Experts is here to help with air conditioning repair in Grand Island that includes a a 100% satisfaction guarantee.*

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

To get started—switch the thermostat from “cool” to “off.” This halts chilly refrigerant from going to the outdoor compressor, which could hurt it and result in a pricey repair.

After that, move the fan from “auto” to “on.” This produces heated airflow over the frozen coils to force them to melt faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t trigger a cooling cycle.

It may take under an hour or the better part of a day for the ice to defrost, depending on the level of the accumulation. While you’re waiting, check the condensate pan under the AC unit. If the drain line is obstructed, it may create a mess as the ice melts, potentially resulting in water damage.

Step 2: Diagnose the Problem

Not enough airflow is a prime reason for an AC to freeze up. Here’s how to figure out the problem:

  • Exmaine the filter. Poor airflow through a dusty filter could be the issue. Check and change the filter monthly or immediately when you observe dust accumulation.
  • Open any closed supply vents. Your house’s supply registers should be open all the time. Sealing vents reduces airflow over the evaporator coil, which may cause it to freeze.
  • Check for covered return vents. These often don’t have adjustable louvers, but furniture, rugs or curtains can still block them.
  • Insufficient refrigerant: While airflow restrictions are the most frequent suspect, your air conditioner could also be low on refrigerant. Depending on when it was replaced, it may have Freon® or Puron®. Low refrigerant calls for pro help from a certified HVAC tech. H2: Step 3: Get in Touch with an HVAC Pro at McElroy Service Experts

If inadequate airflow doesn’t appear to be the trouble, then another issue is leading your AC freeze up. If this is the case, just defrosting it won’t repair the issue. The evaporator coil will possibly freeze again unless you take care of the underlying cause. Contact an HVAC specialist to check for troubles with your air conditioner, which could include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run low. Insufficient refrigerant means there’s a leak somewhere. Only a pro can pinpoint the leak, fix it, and recharge the system to the correct level.
  • Filthy evaporator coil: If dust accumulates on the coil, air can’t reach it, and it’s likely to freeze.
  • Nonfunctional blower: A broken motor or unbalanced fan could stop airflow over the evaporator coil.

If your AC freezes up, get in touch with the NATE-certified specialists at McElroy Service Experts to fix the issue. We have lots of experience helping homeowners diagnose their air conditioners, and we’re sure we can get things running again fast. Contact us at 308-210-4398 to schedule air conditioning repair in Grand Island 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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