Why Won’t My Furnace Shut Off in Caroline, VA?

A furnace that refuses to shut off presents every bit as serious of a problem to homeowners in Caroline, VA, as one that doesn’t turn on. Any deviation from ordinary cycling behavior can significantly damage your system and drive up your energy bill. Here are a few likely explanations for why your furnace won’t shut off:

Weak Airflow

Depending on the temperature in your home, your thermostat will trigger your furnace to turn on or off. Your furnace’s ability to alter the temperature in your home crucially depends on its ability to create hot air and circulate it throughout your home. The upshot of this is that if air doesn’t flow smoothly through your furnace, the system may end up working constantly.

If airflow is weak, your furnace won’t warm your home adequately. This means your thermostat won’t signal your furnace to shut down.

To minimize the risk of this, you must change your furnace’s filter at least once every three months. Annual furnace maintenance is also essential. Other causes of weak airflow require furnace repairs.

Faulty Thermostat

Even with adequate airflow, your thermostat can still malfunction and misread the temperature in your home. If this happens, it can send incorrect signals, causing your heating system to work at inappropriate times. As a result, your furnace might not shut off.

Incorrect Fan Settings

Your system may either have its fans set to “on” or “auto.” If your furnace is set to “on,” the fans will operate constantly. If someone accidentally sets the fan to “on,” switch it back to “auto.”

If your furnace doesn’t shut off, you must immediately intervene to prevent additional strain on your system. Not doing so can severely impact your ability to stay comfortable this fall. Call Custom/Design Heating & Air Conditioning today and make an appointment for our heating repair services.

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