Furnace doesn't always light
Is there a good thread for troubleshooting furnace problems? Mine is not quite 3 years old and has worked fine until this week. Sometimes when the thermostat calls for heat the fan comes on but the...
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To close off this thread, ever since I disassembled the furnace to have a look at the sail switch, it has been working fine. I assume the action of removing and reinserting the connectors cleared the problem.
Fingers crossed.
Fingers crossed.
