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Tips For Fixing A Furnace That Short Cycles

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If you have just turned your furnace on for the first time this year, then you may need to make some adjustments to the device. This is especially true if you notice that your heater is short cycling or turning on and off too often. If you notice this problem, then there may be several causes. Keep reading to learn about a few of them and to also understand how you can correct the issue. 

Thermostat Position

If you have recently installed a new thermostat to better allow yourself to control the heating zones in your home, then you may have placed the thermostat a bit too close to your furnace. If you do this, then the thermostat will register an almost immediate temperature change once the heater turns on. The thermostat will then tell the furnace to turn off. As heat dissipates from around the thermostat, the temperature drops and the thermostat will tell the heater to turn on again.

If you feel that this may be the issue that you are experiencing, then disable the thermostat to see if the furnace stops short cycling. If so, consider moving the thermostat to another location. Also, keep in mind that sunlight beaming on the thermostat, open windows near the device, or the placement of the thermostat near an oven or other appliance can cause malfunction issues too. 

The best place for a thermostat is against an inside wall, in an open area, and towards the center of your home.

Flame Sensor Malfunction

Every gas furnace has a safety device called a flame sensor that checks to see if the pilot flame is on or if the furnace flame is lit while the gas is on. This device is essential when it comes to stopping gas leaks in the home. The sensor is a part with a metal tip, and this metal piece can build with rust over time. This is especially true if your furnace is in a basement area that is typically damp.

When the flame sensor malfunctions, it cannot properly tell if the pilot light or flame is lit. If it cannot sense the flame, then the device automatically turns off the gas. 

While a flame sensor can be cleaned, it is best to replace the device if it is malfunctioning. After all, it is a safety feature that is required to keep fires at bay. Speak to your heating repair specialist about the replacement since the job does require you to work with the gas line and some electrical wiring. To learn more, contact a company like Advanced Heating & Cooling. 


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