Repair Your Frozen Air Conditioner with These 3 Simple Tips

Does the air flowing from your supply registers abruptly seem hot? Inspect the indoor component of your air conditioner. This part is located in your furnace or air handler, if you have a heat pump. If there’s water dripping onto the floor, there could be ice on the evaporator coil. The AC coil inside the system may have frosted over. You’ll need to thaw 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 is here to help with air conditioning repair in Kingston upheld by a 100% satisfaction guarantee.*

Step 1: Set the Air Conditioning to Off and the Blower On

First things first—switch the thermostat from “cool” to “off.” This stops chilly refrigerant from flowing to the outdoor compressor, which could damage it and result in a costly repair.

Then, move the fan from “auto” to “on.” This creates warm airflow over the crystallized coils to force them to thaw faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t begin a cooling cycle.

It can take less than an hour or most of the day for the ice to defrost, depending on the level 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 might cause a mess as the ice melts, potentially causing water damage.

Step 2: Diagnose the Trouble

Bad airflow is a main reason for an AC to frost over. Here’s how to get to the bottom of the issue:

  • Inspect the filter. Insufficient airflow through a filthy filter could be the problem. Inspect and change the filter once a month or immediately when you see dust accumulation.
  • Open any closed supply vents. Your home’s supply registers should remain open always. Shutting vents limits airflow over the evaporator coil, which could cause it to freeze.
  • Check for blocked return vents. These typically don’t use moveable louvers, but furniture, rugs or curtains can still obstruct them.
  • Insufficient refrigerant: While airflow restrictions are the most frequent suspect, your air conditioner might also be low on refrigerant. Depending on how old it is, it may have Freon® or Puron®. Insufficient refrigerant calls for pro support from a certified HVAC technician. H2: Step 3: Get in Touch with an HVAC Expert at Service Experts Heating & Air Conditioning

If inadequate airflow doesn’t appear to be the trouble, then something else is leading your AC freeze. If this is what’s occurring, just letting it melt won’t repair the issue. The evaporator coil will probably keep freezing unless you take care of the underlying issue. Call an HVAC professional to check for troubles with your air conditioner, which can include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t run low. Not enough refrigerant indicates a leak somewhere. Only a professional can pinpoint the leak, mend it, and recharge the air conditioning to the appropriate concentration.
  • Dirty evaporator coil: If dust collects on the coil, air can’t flow over it, and it’s liable to freeze.
  • Nonfunctional blower: A broken motor or unbalanced fan can halt airflow over the evaporator coil.

When your AC freezes up, call on the NATE-certified professionals at Service Experts Heating & Air Conditioning to take care of the situation. We have years of experience helping homeowners diagnose their air conditioners, and we’re confident we can get things operating again fast. Contact us at 613-817-1591 to schedule air conditioning repair in Kingston with us now.


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