Blower won't stop running - http://www.hvacmechanic.com/ Forums
Original message
| majorotp
 |  "Blower won't stop running"
, posted Thu 28 Aug 11:11  
With the thermistat in off the blower continues to run and never shuts off. I have removed all wires from the thermistat that connect to the board in the furnace which will take it out of line all together. Then when i press the door interlock switch the blower still runs.
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Replies:
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| learner
| "Re(1):Blower won't stop running" , posted Thu 28 Aug 11:16
Hi,
I think the blower power control relay is stuck. Easiest way is to replace the board. If you know what you're doing you can replace the relay module on the board.
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| | yuri
| "Re(2):Blower won't stop running" , posted Thu 28 Aug 11:59:
Not so soon. Some circuit boards have a terminal for CONT continuous fan running and you may have a wire hooked up to it if you are not the original owner. Previous owner may have had that done. Usually the red wire from the fan is the lowest speed and may be hooked to it.
Yuri
[this message was edited by yuri on Thu 28 Aug 12:00] |
| | majorotp
| "Re(3):Blower won't stop running" , posted Fri 29 Aug 08:08
The red motor wire is hooked up to the low terminal on the board. If i remove this wire, the blower stops running.
I've been living here for ten years and this just started the other day.
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| | yuri
| "Re(4):Blower won't stop running" , posted Fri 29 Aug 19:55
What is the make, model, serial # and age of the furnace
Yuri
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