Fast Steps for Repairing a Frozen Air Conditioner

Does the air flowing from your supply registers unexpectedly appear hot? Look at the indoor component of your air conditioner. This component is housed in your furnace or air handler, if you rely on a heat pump. If there’s water leaking onto the floor, there may be ice on the evaporator coil. The AC coil in the system may have frosted over. You’ll need to melt it before it can cool your home again. 

Here’s the things you should do. If you can’t get the coil frost-free, Service Experts Heating, Air Conditioning & Plumbing is here to support you with air conditioning repair in the U.S. upheld by a 100% satisfaction guarantee.* 

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

To begin—switch the thermostat from “cool” to “off.” This halts chilly refrigerant from moving to the outdoor compressor, which could hurt it and result in an expensive repair. 

Then, move the fan from “auto” to “on.” This produces heated 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 trigger a cooling cycle. 

It may take not more than an hour or most of the day for the ice to melt, depending on the extent of the ice. While you’re waiting, watch the condensate pan under the AC unit. If the drain line is obstructed, it might overflow as the ice melts, possibly resulting in water damage. 

Step 2: Troubleshoot the Issue 

Low airflow is a main explanation for an AC to freeze up. Here’s how to get to the bottom of the situation: 

  • Check the filter. Low airflow through a dirty filter could be the problem. Look at and replace the filter once a month or once you notice dust accumulation. 
  • Open any shut supply vents. Your residence’s supply registers should remain open always. Closing vents decreases airflow over the evaporator coil, which might lead it to freeze. 
  • Check for obstructed return vents. These often don’t use moveable louvers, but furniture, rugs or curtains can still obstruct them. 
  • Low refrigerant: While airflow restrictions are the most common suspect, your air conditioning could also have insufficient refrigerant. Depending on its age, it may have Freon®. Not enough refrigerant calls for skilled help from a certified HVAC tech. H2: Step 3: Get in Touch with an HVAC Professional at Service Experts Heating, Air Conditioning & Plumbing 

If poor airflow doesn’t appear to be the trouble, then another issue is leading your AC frost over. If this is the case, merely letting it melt won’t repair the issue. The evaporator coil is likely to keep freezing unless you take care of the underlying issue. Call an HVAC pro to address problems with your air conditioner, which may include: 

  • Refrigerant leak: AC units keep using refrigerant, so it shouldn’t get used up. Low refrigerant indicates a leak somewhere. Only a specialist can locate the leak, mend it, and recharge the system to the appropriate level. 
  • Grimy evaporator coil: If dirt builds up on the coil, air can’t flow over it, and it’s liable to freeze. 
  • Broken blower: A broken motor or unbalanced fan might prevent airflow over the evaporator coil. 

When your AC freezes up, contact the ACE-certified pros at Service Experts Heating, Air Conditioning & Plumbing to repair the issue. We have lots of experience helping homeowners troubleshoot their air conditioners, and we’re sure we can get things running again quickly. Contact us at 866-397-3787 to get air conditioning repair in the U.S. with us now.