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Dayton Furnace - Pilot Light Goes Out but Fan keeps running?

I have a Dayton Heater Model 3E233,and the pilot light keeps going out ,but the fan keeps running .any ideas how to correct the problem?

Thank you
Mike

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  • Anonymous Mar 13, 2014

    red light keeps flashing and the furnace doesnt heat fan still runs no heat

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  • 137 Answers

Pilot lighted furnaces have a thermocouple made from disasimilar metals that when heated create electricity to actuate a relay that alows the gas to flow to the furnace.

When the thermocouple gets coated with carbon from the pilot lights constant burning it acts as an insulator and keeps the thermocouple from getting enough heat to generate electricity, a very good safety factor.

What you have to do is locate the thermocouple it should be located over the pilot light, you will see a gray substance around the thermocouple it will be hard like cement, take a knife and scrape away as much of the gray material as possible then sand the themocouple with a medium sandpaper until it shines, use one of you wifes emery boards, this should solve your problem.

Posted on Feb 24, 2009

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Posted on Jan 02, 2017

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