Repair Your Frozen Air Conditioner with These 3 Quick Tips

Does the air emitting from your supply registers abruptly seem not cold enough? Check the indoor part 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 could be ice on the evaporator coil. The AC coil inside the system may have frozen over. You’ll need to thaw it before it can cool your home again.

Here’s what to do. If you can’t get the coil defrosted, Strand Brothers Service Experts is here to help with air conditioning repair in Austin upheld by a 100% satisfaction guarantee.*

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

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

After that, adjust the fan from “auto” to “on.” This creates warm airflow over the frosty coils to help them melt faster. Remember to set the cooling mode to “off” so the air conditioner doesn’t trigger a cooling cycle.

It can take less than an hour or most of the day for the ice to melt, depending on the amount of the buildup. While you’re waiting, keep an eye on the condensate pan underneath the AC unit. If the drain line is blocked, it might spill over as the ice melts, likely creating water damage.

Step 2: Pinpoint the Situation

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

  • Inspect the filter. Inadequate airflow through a dusty filter could be the problem. Look at and put in a new filter monthly or immediately when you notice dust buildup.
  • Open any sealed supply vents. Your residence’s supply registers should remain open always. Sealing vents decreases airflow over the evaporator coil, which can lead it to freeze.
  • Look for blocked return vents. These often don’t come with shiftable louvers, but furniture, rugs or curtains can still obstruct them.
  • Insufficient refrigerant: While airflow restrictions are the most typical suspect, your air conditioner might also not have enough refrigerant. Depending on when it was installed, it may use Freon® or Puron®. Insufficient refrigerant calls for professional help from a certified HVAC specialist. H2: Step 3: Call an HVAC Tech at Strand Brothers Service Experts

If inadequate airflow doesn’t appear to be the trouble, then something else is leading your AC freeze. If this is the case, merely defrosting it won’t take care of the issue. The evaporator coil will probably freeze again unless you fix the main symptom. Call an HVAC technician to look for troubles with your air conditioner, which can include:

  • Refrigerant leak: AC units continuously use refrigerant, so it shouldn’t get used up. Not enough refrigerant indicates a leak somewhere. Only a technician can pinpoint the leak, fix it, and recharge the system to the appropriate concentration.
  • Grimy evaporator coil: If dust builds up on the coil, air can’t get to it, and it’s apt to freeze.
  • Nonfunctional blower: A broken motor or unbalanced fan can prevent airflow over the evaporator coil.

When your AC freezes up, get in touch with the NATE-certified specialists at Strand Brothers Service Experts to repair the trouble. We have lots of experience helping homeowners troubleshoot their air conditioners, and we’re sure we can get things operating again quickly. Contact us at 512-596-1257 to schedule air conditioning repair in Austin with us today.


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