bbcolton924
Sep 10, 2009, 12:45 PM
Gas furnace
Keeps cycling on for 30 secs and it is not on -----the thermostat is not on- we are not using heating or a/c
medic-dan
Sep 10, 2009, 03:02 PM
The volunteer fireman part of me says...
Just as a safety item, turn the furnace off at the "emergency" switch or the circuit breaker box. I don't know what's going on but you don't need to deal with a fire.
mygirlsdad77
Sep 10, 2009, 04:06 PM
What brand and model of furnace is it? Are the burners igniting, or just the draft inducer comes on, or just the blower comes on? Sounds to me like a fualty fan/limit switch, or thermostat, or control board. I suggest you have in a pro to locate problem,, and as medic suggested, shut power to furnace off until they get there. Good luck and please let us know what they find.