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Old 11-06-2010, 02:24 PM   #1
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gas furnace doesn't stay firing

My gas funace start and I see the fire. but it just keep some seconds then off, start again, so on for a few time then the system off.

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Old 11-06-2010, 03:45 PM   #2
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gas furnace doesn't stay firing

Clean the flame sensor with fine emory paper. Should look like one of these and sits in front of one of the burners.
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"Cut it twice and it is still too short".
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