Furnace Blower Motor Runs but no Fire

Old 10-18-04, 06:02 PM
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Furnace Blower Motor Runs but no Fire

I have an 8 year old Fraser-Johnston (York) high efficiency gas furnace. An 80k btu I believe. The blower motor runs but it does not fire. I checked the intake and exhaust and they are both clear (had a blocked intake one time). The gas is working to the water heater so assume it's getting gas. Not sure where the problem is. Are there any things I can do to troubleshoot it? Thanks.

Old 10-19-04, 05:14 PM
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Location: NW atlanta
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sounds like an open safety. look around the burner assembly for roll out switches, also known as limits. this is a safety issue, that is why most are manual reset. does it have a circuit board? very likely diagnostic light on it

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