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Why does the ignitor not always start the heat

The ignitor starts and the gas goes on but the blower does not always come on with heat, and it is not because the house is warm enough that the thermostat is higher than the tempature set.

Sometimes the ignitor starts and then goes off and the blower starts with cold air.

What could cause this if the ignitor was replace and the filter was just replaced?

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Id say it could be either a control board or blower motor problem.

Posted on Nov 30, 2008

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