gas furnace

Old 09-26-18, 03:40 PM
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gas furnace

I have a winchester gas furnace which is not working. It ignites for approximately 15 seconds than goes off and after 3 times, the fan blower goes off. I checked and I get 7 red blinking lights as indication. I've tried replacing the flame sensor, but I still get the same indication. What could be the problem?
Old 09-26-18, 09:35 PM
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Welcome to the forums.

Please post the model number for that furnace. It can be found inside
on an ID tag near the burner on the side wall.

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