Why won't my furnace fan turn on with the heat?

I have a Coleman Evcon electric furnace. This morning, I woke up, and the heat was on, but the fan wasn't. I turned the fan switch to "On," and the fan turned right on. I switched it back to "Auto," and the fan turned off. It turns on normally if I turn on the A/C, but it won't work with the heat. What could be causing it to do that?

2014-01-04T09:00:29Z

I installed a new thermostat, but it didn't fix the problem.

Marko2014-01-04T09:18:30Z

Favorite Answer

Those units have fuses or breakers so they can be checked and tested.

http://www.youtube.com/watch?v=n17pctnzErY

11

Jim W2014-01-04T17:03:54Z

There is a temperature sensor in the furnace that enables the fan WHEN the heat is hot enough to give comfort. That is where I would start looking for the problem.

10

True19422014-01-05T22:23:50Z

relay switch I would think

00

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