Short Cycling Gas Furnace. This type of problem can be especially dangerous because when gas is burned it creates carbon monoxide which is normally released through the exhaust vent. A short cycling furnace when your furnace keeps turning off and on will typically only run for a minute or two or less before shutting off.
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What causes short cycling. Boiler short cycling short cycling. This video is part.
This video is part.
Whereas a properly functioning furnace will run for several minutes per cycle. Short cycling is a malfunction that causes your furnace to turn on for short periods of time normally between four and seven seconds. That can cause the furnace to overheat and forces the high limit switch to ride to the rescue by shutting the furnace off. What is happening here is the gas is supplied to the burners and the burners light.
