I have a Coleman Presidential 2 furnace in a mobile home. The pilot is lit and the thermostat clicks the furnace on, but the blower will not engage. After a few minutes, the furnace shuts down (to pilot light only). I had the same problem last year, but a cleaning solved the problem. Any advice would be appreciated. One other thing: occasionally, I have heard the blower squeak.

Does it run on ac or fan on?

There is no AC. The blower switch has on and off (not manual, auto). With the switch set to off, only the pilot light stays on. With the switch set to on, the burner will light, but the blower will not start.
Thanks for the response.

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