Question about Dayton (3E379) Heater

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Dayton 3E372B Fuel Trimmer

My heater kicks on, pilot ignites and fan turns on, however all of a sudden the gas lines go out and everything ignites again. This process keeps repeating over and over. The module is operational, the thermostat is working and the blocked vent switch is new.Any ideas would be helpful.

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  • 70 Answers

Sounds like the thermal couple could also be the ignition module.Is it spark ignition or hot surface

Posted on May 06, 2008

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Does the main blower fan kick on? Also, if the heater is vented outside via a flue pipe, there may be a small (about 3 or 4 inches in diameter) vent fan that kicks on to ensure the exhaust fumes are evacuated through the flue pipe. If there's a problem with that fan, the burner won't light either.

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