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Old 03-15-2011, 05:41 PM   #1
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Furnace won't stop running


All of a sudden my electric furnace will not stop running. It just keeps blowing heat until I kick off the breaker. Even disconnecting the thermostat does not stop it. This is an old Intertherm electric furnace model MAC2454A in a mobile home. What could be causing this?

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Old 03-15-2011, 05:47 PM   #2
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Furnace won't stop running


stuck relay or sequencer

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Old 03-15-2011, 11:30 PM   #3
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Furnace won't stop running


Two most common causes would be stuck sequencer or element coil that has broken or fallen down touching against the frame.
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Old 03-16-2011, 12:27 PM   #4
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Furnace won't stop running


You guys were right. It was the sequencer. Changed and fixed. Thank you both very much for your help.
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Old 03-16-2011, 09:24 PM   #5
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Furnace won't stop running


Glad you got it going again. You're very welcome, happy to help.
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