Question about Coleman Propane Forced Air Heater w/Electronic Ignition (50,000-80,000 BTU)

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Coleman furnace blower runs continuously

Have a Coleman Evcon Propane unit and the blower runs continuously (and combustion blower). I have done the following.
-Disconnected thermostat wiring.
-Check function of both limit switches.
-Centrifugal switch on combustion blower working.
-Gas valve working.
-Not sure about glow igniter. Reads resistance. Circuit board sending about 2V. Doesn't heat up.
-Circuit board LED indicates no problem (continuous).

Any ideas or other checks?


Only way to make blower stop is to turn off power.

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Re: Coleman furnace blower runs continuously

You should be seeing 120 volts to the igniter. Anything less requires either a replacement of the transformer, start relay or control module.

Posted on May 30, 2008

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