What To Do When Your AC Freezes

Monday, November 28th, 2022
frozen ac HVAC/Refrigeration Technician

A malfunctioning AC unit can make it very difficult to stay cool. Here are some tips on what to do when your AC freezes up.

Examine The AC Filter

The first thing you should do with your frozen AC unit is examine your filter. The filter removes dirt and debris from your home’s indoor air and is integral to the system. It could blow warm air or cause a unit freezing problem if it does not work correctly. In most cases, cleaning the filter can solve the issue.

Clean The Evaporator Coils

Next, you should clean the evaporator coils. These coils, located in the unit, collect excess moisture from the air before it enters the fan. After removing excess moisture, they blow cold air back into the room. Clogged or frozen coils won’t work properly, causing poor airflow. To clean them, use a damp cloth to wipe them and remove dirt or debris gently.

Clean Condensate Lines

Another thing to check when your AC freezes are the condensate lines. These coils cool the AC unit’s water to evaporate in the air. When they are dirty, they can create a buildup of water. Water buildup can cause a frozen air conditioner and reduce efficiency. 

Check The Fan Blades

A broken blade can interfere with the airflow and cause the air conditioner to freeze. Carefully remove the blades and check them for damage. They should be securely attached to the motor, not bent or damaged. If they have damage, you will need to replace them with the same size blades to ensure they work properly.

Inspect For Refrigerant Leaks

The unit uses refrigerant to produce cool air. If there is a problem with the refrigerant line, it can cause the system to freeze up. You can usually detect a refrigerant leak by listening to the compressor motor while the system is running. If it clicks on and off regularly, it is likely leaking. Scheduling HVAC services is the best way to find and repair a leak. An HVAC technician can inspect and repair other unit parts to ensure they function correctly. 

Does Your Commercial HVAC System Need Repairs?

If your commercial HVAC system needs repairs or replacements, contact Allen’s Tri-State Mechanical in Amarillo, Texas! Our professionals oversee commercial and industrial properties throughout the Texas Panhandle and Tri-State area. You can reach us at (806) 376-8345 to learn more!