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sursedur 02-27-2008 12:10 PM

Blower Not Working
I have Kenmore Furnace Two Stage Furnace. The furnace was working fine but the blower would not start. So, the HVAC repair man told me that the circuit board was bad. I ordered the circuit board. But, he had jumped the wire so that blower stays on regardless of thermostat setting. So, furnace would start and shut down with thermostat but the blower keeps on running.

I have received the circuit board and was thinking to replace it myself. I can transfer all the wires from old to new ciricuit board. But, I don't know how he has jumped the blower motor.

After reviewing the circuit diagram, it seems like he has done following.

1. He removed the 120V wire coming from switch (i suppose).
2. He removed the blower wire going to "cool" terminal and hook up at 120V terminal.

Does this sound correct, I was just wondering if some one can explain.



redline 02-29-2008 02:57 AM

Can you post a photo?

UBoiler 03-02-2008 08:39 PM

If it were identical part I'd switch it out myself. Part should come with some sort of instructions and wiring diagram, if I could make any kind of good sense out of them, I would install the replacement board myself. As to the blower, most people will do the easiest, simplest thing to get the deal done and I'm guessing your tech helped you out by wiring as you have explained. If you have an abundance of doubt, give him a call. He may flat out tell you how he helped you out so you will not be guessing and hoping. Let us know how ow it plays out.

I did not check to see if you posted a photo. Cliff

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