3 Quick Ways to Repair a Frozen Air Conditioner

Does the air emitting from your supply registers unexpectedly feel warm? Check the indoor portion of your air conditioner. This piece is housed within 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 unit 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 defrosted, D & K Heating Service Experts is here to assist you with air conditioning repair in Belleville backed by a 100% satisfaction guarantee.*

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

First things first—set the thermostat from “cool” to “off.” This halts cold refrigerant from moving to the outdoor compressor, which could hurt it and cause a costly repair.

Next, switch the fan from “auto” to “on.” This produces warm airflow over the frosty coils to force them to defrost faster. Double check to set the cooling mode to “off” so the air conditioner doesn’t start 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 buildup. While you’re waiting, keep an eye on the condensate pan below the AC unit. If the drain line is obstructed, it can cause a mess as the ice melts, possibly creating water damage.

Step 2: Pinpoint the Situation

Low airflow is a chief explanation for an AC to frost over. Here’s how to figure out the problem:

  • Exmaine the filter. Poor airflow through a clogged filter could be the culprit. Look at and put in a new filter each month or immediately when you notice dust accumulation.
  • Open any shut supply vents. Your residence’s supply registers should stay open always. Closing vents reduces airflow over the evaporator coil, which can result in it freezing.
  • Check for blocked return vents. These often don’t use moveable louvers, but furniture, rugs or curtains can still block them.
  • Low refrigerant: While airflow restrictions are the most frequent cause, your air conditioner might also be low on refrigerant. Depending on when it was installed, it may rely on Freon® or Puron®. Insufficient refrigerant calls for professional assistance from a certified HVAC technician. H2: Step 3: Contact an HVAC Expert at D & K Heating Service Experts

If insufficient airflow doesn’t appear to be the problem, then another issue is leading your AC freeze up. If this is the case, simply thawing it out won’t fix the trouble. The evaporator coil is likely to continually freeze unless you fix the root cause. Get in touch with an HVAC technician to look for problems with your air conditioner, which can include:

  • Refrigerant leak: AC units keep using refrigerant, so it shouldn’t run out. Low refrigerant is a sign of a leak somewhere. Only a pro can locate the leak, mend it, and recharge the system to the correct concentration.
  • Filthy evaporator coil: If dust builds up on the coil, air can’t flow over it, and it’s apt to freeze.
  • Malfunctioning blower: A broken motor or unbalanced fan can halt airflow over the evaporator coil.

The next time your AC freezes up, get in touch with the NATE-certified Experts at D & K Heating Service Experts to take care of the problem. We have lots of experience helping homeowners check their air conditioners, and we’re certain we can get things running again in no time. Contact us at 613-707-2421 to book air conditioning repair in Belleville with us now.

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