Question about Dayton Gas Furnace Heater

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My Dayton Gas Unit heater will not stay on. The

My Dayton Gas Unit heater will not stay on. The Blocked Vent (spill)shut off switch keeps triping. I have replaced the motor to make sure that I have adequate air flow through the manifold. The first one hummed quite loud like it was under a load. There is no blackage external to the unit. I have also swapped this switch with the exact same unit and the issue stays with this heater. Voltage to the unit is 123 Volts AC. So no voltage drop going on with the fan motor.

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Have you tried the flue vent? If not, an easy way to check this would be to take the vent pipe off of the unit and see if it continues to have the problem. In most cases, this happens when you have blocked return air or dirty filters, flue blocked, or induction is blocked from switch or housing. One other possibility would be a dirty/clogged a coil which isn't allowing sufficient air to push out causing the limit to trip. I hope this helps somewhat.

Posted on Feb 07, 2010

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Posted on Jan 02, 2017

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