furnace short cycling in Newtown, PA

Why Won’t My Furnace Stay On in Newtown, PA?

February 12, 2024

Short cycling is a problem that is usually a sign of some underlying issues with your furnace. Since a short-cycling furnace can’t complete a proper heating cycle, this can make your winter in Newtown, PA uncomfortable. Here are just a few reasons why your furnace won’t stay on.

Clogging

Since combustion produces smoke and soot, interior clogging is an ever-present concern for many furnaces. The two types of clogging that have the most immediate bearing upon short cycling are air filter clogs and flue pipe clogs.

Air filters get obstructed because debris the filters have removed from the air gets stuck in the mesh and hampers airflow through the furnace, causing the appliance to overheat and shut down. Flue pipes expel toxic waste, and when they fill with soot, your furnace will activate a safety feature and turn off completely.

Thermostat Issues

Another possibility is that your thermostat is faulty and sending improper signals to your furnace. The thermostat may have frayed wiring or may simply be too old.

Age

Lastly, your furnace might just be too old, and the short cycling you see may be a result of the inevitable decline in functionality that comes with age. Targeted repairs may be able to stop short cycling temporarily, but if the malfunction returns quickly, you can be sure that your unit’s age is the real root of the problem.

The average life expectancy of gas and heating-oil-powered furnaces is 15 to 20 years, while it is 20 to 30 years for electric furnaces. A reliable way to stop short cycling once your furnace has passed its prime is to install a new furnace.

The issues causing your furnace to shut off are nothing our team of trained HVAC technicians can’t solve. Contact us at Service First Heating & Air Conditioning, and ask for furnace repair services in Newtown, PA today.

Image provided by iStock

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