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Why Does My Furnace Turn On and Off?

When your furnace turns on and off over and over, it is called short cycling. It wastes power and wears out your furnace faster.

Common causes

A dirty filter is a top cause. So is a thermostat in a bad spot, like near a heat source. Sometimes the furnace is too big for the home.

Try the easy fix first

Start by changing your air filter. A clogged filter makes a furnace overheat and shut off, again and again.

When to call

If a clean filter does not fix it, there may be a bigger problem. Call PolarFix and we will find out why and fix it.

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