Why Does My Heat Pump in Ringgold, GA, Run Constantly?

October 23, 2024

Heat pumps tend to run in 10- to 20-minute heating and cooling cycles, depending in part on the temperature outside. Longer cycles can raise alarm and stress as you wonder if it’s going to need a repair. We’ll explore some possible reasons your heat pump in Ringgold, GA, may run constantly and what you can do about it.

Variable-Speed Heat Pump

First, check to see if you have a variable-speed system, which includes a variable-speed fan and modulating compressor. Manufacturers design these systems to run constantly but at a lower capacity, allowing them to maintain your desired temperature more efficiently.

Clogged Air Filter

Air filters are critical for keeping contaminants out of the system that can clog it and restrict airflow. If it clogs, the system will run longer as it attempts to bring your home to the set temperature. Plan to check your filter monthly and change smaller filters every 30 to 90 days.

Stuck Reversing Valve

The reversing valve changes where the high-pressure refrigerant flows, allowing it to offer both heating and cooling. If this gets stuck, it’ll likely happen when it’s in the cooling position, causing the system to run constantly. A service technician will test the reversing valve during routine heat pump maintenance to help prevent mid-season issues.

Improperly Set Thermostat

Beyond setting the temperature in your home, thermostats also help control the fan function. There are typically two options for the fan: Auto and On. If it’s set to On, the fan will continue operating regardless of whether it’s running a heating or cooling cycle.

Refrigerant Leak

Heat pumps operate on refrigerant, transferring heat into or out of your home. Insufficient refrigerant leads to insufficient compression, reducing the amount of heat the system can expel. The result is longer heating and cooling cycles initially and possibly short cycling later as it gets more severe.

Don’t let your heat pump suffer excess wear by letting it run constantly. Call to schedule a heat pump repair with one of our NATE-certified service technicians at Dalton Heating & Air.

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