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Old 10-07-2012, 01:21 PM   #1
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Furnace will not stop running

What could be the problem

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Last edited by BigJim; 10-07-2012 at 02:37 PM. Reason: Added information
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Old 10-07-2012, 03:02 PM   #2
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Furnace will not stop running

are you melting or is it just the supply fan...if your swetting pull the stat off the subbase lets hear back

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Old 10-07-2012, 03:40 PM   #3
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Furnace will not stop running

If your too hot, remove one of the thermostat connections from the furnace.
Dis connecting "R or W" will show you that it's a thermostat or thermostat wire circuit problem if the burners then shut down..

If it's just the fan that won't stop, then a overheating furnace with a tripped limit is a common cause. Dirty filters?
Thermostat fan control on or shorting?

Let us know.
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