Every so often my combustion fan turns on for no reason. The t-stat is not calling for heat and in fact is actually off. The fan just starts and stays on for what I guess is a full cycle of time and goes off. Happens every so often. Any ideas?
Haunted Combustion Fan
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tlc1976
Minister of Fire
Sounds like the fan relay or part of the circuit board is going flaky. Connecting intermittently when it shouldn't, regardless if the stove is calling for it to connect.
Unless by any chance the stove is wired so the exhaust temp sensor will run the fan if it connects even when the stove is off. If that's the case then it could be that sensor too.
Unless by any chance the stove is wired so the exhaust temp sensor will run the fan if it connects even when the stove is off. If that's the case then it could be that sensor too.
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