Heat Pumps and Electric Heating - Furnace fan never stops running

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AnyH2O
11-25-08, 06:44 AM
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

woodman
12-13-08, 07:47 PM
Sounds like the limit switch is shot.