Furnace Short Cycling Problems: 8 Possible Causes

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Furnace Short Cycling Problems: 8 Possible Causes

Short-cycling occurs when your furnace goes on and off repeatedly for short periods, preventing the house from reaching its proper temperature. A typical residential furnace cycles on and off three to eight times each hour, resulting in heating cycles of seven to twenty minutes. Your furnace is probably out of whack if it happens every minute or two.

  • Dirty Filters And Blower Wheels

If you don’t change your air filters frequently enough, they will become clogged and filthy, causing the heat exchanger to overheat.

A filthy blower wheel may be causing your furnace to turn on and off too rapidly. The blower wheel contains blades that push air, and if they are clogged with dirt, they will not operate as well.

  • Closed Air Supply Vents

Check your air vents to determine if any of them are obstructed in any way if your furnace keeps switching off. If the heat exchanger doesn’t get enough air, it won’t convey enough heat. As a result, the heat will build up, possibly causing your furnace to short cycle.

  • Faulty Thermostat

Thermostats that are damaged might cause furnace problems. It regulates the temperature of your whole heating system. Several factors might be causing your thermostat to malfunction. It might be that the wiring has to be replaced, batteries need to be replaced, or the thermostat is in the wrong spot.

  • Thermostat Near a Heat Source

If the thermostat is near any heat source, such as direct sunlight, the temperature reading will be skewed, causing the thermostat to switch on and off in an erratic pattern. You’ll need to hire a professional who does furnace installation in Pasadena to repair any outdated wiring or transfer it to a more suitable position.

  • Flame Sensor

A corroded or unclean flame sensor could cause your furnace’s frequent shutoffs as it will not record the flame, and the gas valve will be turned off, causing your system to shut down. It would help if you got this checked by a professional who offers heating tune-up in Pasadena.

  • Blower Motor

The blower motor is essential for circulating air around your home. If the blower motor is turned off, no air will flow over the heat exchangers, causing your furnace to shut down.

  • Flue Pipe

Your furnace’s flue pipe, also known as the exhaust vent, is placed on your roof and might cause it to short cycle. When dirt, leaves, or other materials are stuck within the pipe, it causes a blockage, and hot gases build up in your furnace, causing it to overheat.

  • Oversized Furnace

Your furnace may short cycle if it’s too big for your home as it will heat your home too rapidly and then switch off suddenly. The procedure is then repeated when your house becomes cold again. If you want to fix the problem, you have to replace your furnace with the help of a professional who offers heating Replacement in Pasadena.

If you want to save money on furnace installation and service, call us at 410-705-2082 or mail us at [email protected].

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