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How Do I Stop My AC From Freezing Up?

There’s nothing worse than having your air conditioner break down on a hot summer day. Even in warm areas, an air conditioner may freeze up. There are several problems that may cause your air conditioner to freeze. Here’s what you can do.

Change Your Air Filters

Clogged air filters can impede your HVAC system’s airflow. When your filters are dirty, dust and dirt can build up on your evaporator coils and lead to your air conditioner freezing up. To fix this problem, change your air filters regularly. Most filters need to be changed monthly. Not only will it help to keep your air conditioner from freezing, it will also increase your home’s indoor air quality.

Open Supply Registers

Many people keep the supply registers closed in unused rooms while attempting to save energy. However, closing too many could lead to the air conditioner freezing up, due to a lack of proper airflow. No more than a quarter of your supply registers should be closed at a time.

Recharge the Refrigerant

Your air conditioner cannot remove enough heat from the air without a sufficient amount of refrigerant. If your coolant is low, it’s likely that you have a refrigerant leak somewhere in your HVAC system. You will need assistance from a qualified repair technician to fix it.

Fan Speed Is Too Low

The air conditioner’s fan needs to blow fast enough to ensure that enough air blows over the unit’s evaporator coil. If the fan speed is not fast enough, the air conditioner may freeze. Have an HVAC technician check your fan speed and increase it if necessary.

Schedule Regular Service

Have your heating and cooling system serviced each spring and fall. Regular maintenance will let you find and fix any problems that may cause your air conditioner to freeze. You can relax knowing your cooling system will work when you need it most.

If your air conditioner is frozen, we can help. Contact us now to schedule your air conditioning repair.