Furnace fan never stops running

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  #1  
Old 11-25-08, 05:44 AM
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Location: St Louis Missouri
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Furnace fan never stops running

I have electric furnace and air. Furnace fan never quits running no matter how I set the thermostat (on, off, or auto) If it pull the breaker the fan quits but goes right back on when I close the circuit again. I have repalced the original thermostat with no changes. Is there a relay switch at the furnace that might be stuck closed? What else might cause this condition to occur to a system that has worked flawlessly for 18 years. Beer 4U2
 
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  #2  
Old 12-13-08, 06:47 PM
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Join Date: Dec 2008
Location: Nebraska
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Sounds like the limit switch is shot.
 
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