Repair Your Frozen Air Conditioner with These 3 Simple Tips

Does the air coming from your supply registers abruptly feel not cold enough? Check the indoor component of your air conditioner. This part is located in your furnace or air handler, if you use a heat pump. If there’s water dripping onto the floor, there may be frost on the evaporator coil. The AC coil inside the equipment might have frozen 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, Peitz Service Experts is here to help with air conditioning repair in Pierre upheld by a 100% satisfaction guarantee.*

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

To get started—move the thermostat from “cool” to “off.” This stops cold refrigerant from moving to the outdoor compressor, which could hurt it and cause a costly repair.

Then, adjust the fan from “auto” to “on.” This produces hot airflow over the frozen coils to help them defrost faster. Make sure to set the cooling mode to “off” so the air conditioner doesn’t start a cooling cycle.

It can take under an hour or the majority of the day for the ice to thaw, depending on the amount of the accumulation. While you’re waiting, check the condensate pan underneath the AC unit. If the drain line is obstructed, it could overflow as the ice melts, likely resulting in water damage.

Step 2: Pinpoint the Problem

Low airflow is a prime reason for an AC to frost over. Here’s how to troubleshoot the issue:

  • Check the filter. Low airflow through a filthy filter could be the problem. Look at and change the filter once a month or immediately when you notice a layer of dust.
  • Open any shut supply vents. Your home’s supply registers should be open constantly. Sealing vents reduces airflow over the evaporator coil, which can result in it freezing.
  • Check for covered return vents. These typically don’t use adjustable louvers, but furniture, rugs or curtains can still cover them.
  • Insufficient refrigerant: While airflow restrictions are the most common culprit, your system may also be low on refrigerant. Depending on when it was installed, it may rely on Freon® or Puron®. Not enough refrigerant necessitates skilled assistance from a certified HVAC tech. H2: Step 3: Contact an HVAC Expert at Peitz Service Experts

If insufficient airflow doesn’t feel like the problem, then another issue is causing your AC freeze up. If this is the case, merely defrosting it won’t take care of the problem. The evaporator coil will probably keep freezing unless you fix the underlying cause. Get in touch with an HVAC tech to address issues with your air conditioner, which may 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 professional can pinpoint the leak, repair it, and recharge the air conditioner to the appropriate amount.
  • Grimy evaporator coil: If dirt collects on the coil, air can’t reach it, and it’s apt to freeze.
  • Malfunctioning blower: A broken motor or unbalanced fan may halt airflow over the evaporator coil.

The next time your AC freezes up, contact the NATE-certified technicians at Peitz Service Experts to repair the issue. We have years of experience helping homeowners troubleshoot their air conditioners, and we’re sure we can get things working again fast. Contact us at 605-223-0307 to get air conditioning repair in Pierre with us right away.


*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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