Re: Furnace Troubleshoot
First, are you saying that ignition happens even though the blower doesn't come on? Or that the blower doesn't come on, so ignition doesn't happen.
The blower should come on first, the air movement causes the sail switch to close and then ignition can happen.
If the first case, you happen multiple problems, the ignition while the blower is not working and the fact the blower isn't going. In this case, the thermostat is triggering the ignition, but not properly.
If the 2nd case, it could be the thermostat, power to the furnace or power to the blower motor. A Volt-Ohm meter would be handy to isolate the problem.
Mike
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