The air conditioner in your Ladue, Missouri, home keeps you cool and safe during extreme heat. But one of the worst things that can happen is to come home to an AC system that won’t shut off. Frozen evaporator coils, a low refrigerant charge, and using a restrictive air filter are common culprits of a constantly running air conditioner. These are all problems that a professional HVAC service technician can easily fix.

Frozen Evaporator Coils

If the AC system won’t shut off and it’s blowing warm air from the air vents, this is a sign of a frozen evaporator coil. Repairing a frozen evaporator coil requires some very meticulous work as well as the knowledge of an experienced HVAC service technician with special tools. The good news is that a trained service technician can usually repair a frozen evaporator coil in only a few hours. As a result, you won’t feel hot for a too long.

Low Refrigerant Charge

A low refrigerant charge causes the air conditioner to work around the clock to keep your home cool. This reduces AC efficiency and adds excessive wear and tear to the unit. As a result, it leads to higher cooling costs and premature repairs and replacements.

A leak in the coils often causes a low refrigerant charge. This is another HVAC problem you should leave in the hands of a professional. Once the service technician identifies the source of the leak, they can repair it and restore the refrigerant charge to the correct level.

Restrictive Air Filter

A clogged filter restricts airflow. As a result, it causes the AC system to compensate by constantly running to try to cool your home. Replacing the clogged filter may fix the problem. If you install a new one and it doesn’t fix the issue, you might be using the wrong type of filter. Not all cooling systems are compatible with filters with high MERV ratings. Try switching to a filter with a lower MERV rating to see if that fixes the problem.

Is your air conditioner constantly running and driving up your cooling costs? Contact Averill Heating & Air Conditioning at (314) 427-3825 to schedule an AC repair service right away.

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