Why Does My Furnace Keep Turning On and Off? | DeZiel Heating & Air, Inc.
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Is your furnace continuously running? This is called “short cycling,” and while it’s definitely annoying, it can also be harmful to the unit. When your furnace keeps turning on and off, it puts undue stress on the furnace to continuously produce warmth, which is unsustainable over time. It’s also likely to put a strain on your wallet because this is not an energy efficient way to heat your home.

Why Does My Furnace Keep Turning On and Off

Learn about the most common causes for short cycling and how to avoid them.

What Causes Short Cycling?

A dirty air filter can throw your entire system into short cycling chaos, but luckily it is the easiest issue to fix. When the filter is clogged, it restricts air from circulating inside the furnace, causing it to overheat and shut down. Washing the filter or replacing it every 30-60 days should prevent this type of short cycling, and get your furnace back to operating normally.

Thermostat issues may also cause a furnace to turn on and off. If the thermostat is malfunctioning, needs a new battery, or is placed too close to the heat source, it can cause the furnace to misfire and misread the environment. If a battery change doesn’t do the trick, give DeZiel a call. You may need a new thermostat.

Most homeowners would never consider that their furnace might be too large for the size of their home. If this is the case, the furnace might heat quickly, the space cools and then the cycle begins all over again, continuously. If you suspect your furnace might be too powerful or large for the size of your home, contact a professional and learn about all your options for a properly-fitted furnace.

How DeZiel Helps

At DeZiel Heating and AC, we have years of experience diagnosing all types of furnace problems, and take pride in the advice we share with our customers. If your furnace is in need of a simple repair, we are happy to help get you back up and running. If it’s time to explore a new furnace, we are experts in all of the best options for your home or business. Give us a call to discuss your furnace needs.

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