Furnace fan shuts off and on

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Furnace gas shuts off when fan starts? [ 0 Answers ]

Hello, here is what happens when unit is turned on. The small fan starts and runs while the ignitor is heating up. When the ignitor is ready the gas switches on and lites. However, as soon as the main fan starts the gas shuts off immedietly. The main fan will continue to run, and while it is, the...

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Set t stat to heat auto sm fan turns on then unit shuts down tries after about 2 min again same result

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When I turn my thermostat on, my oil-fired burner turns on, and the blower fan keeps cycling on and off. On for 5 minutes, off for about 30 seconds, on for another five minutes and so on. Meanwhile, because the building thermostat temperature still hasn't been reached, the furnace remains on, even...

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I have a Clare OLB 503RD Furnace with Coleman Central Air Unit. The AC Unit comes on outside and the furnace fan shuts down. AC freezes up. Is there a relay or motor control on the fan that has failed

Carrier Furnace model 58STA fan only shuts off for 10 second intervals [ 1 Answers ]

My 3 year old Carrier Furnace, model 58STA had a, seemingly, routine cleaning and check recently. Prior to the service call it was running fine. I noticed that after the cleaning the burner would fire up then the blower would come on. The burner stays on for about 5 minutes then shuts down. ...

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