Originally Posted by Jc furnace man
I had a problem this summer when one of the motors would move 2" and stop. did a manual override at the controller and the motors worked fine. So being cheep i pulled the motor out and found the circuit board is very simple, tested all the wiring it was fine. The 2 little "Hall" sensors had failed ordered 5 from amazon (Honeywell SS41 Hall effect sensor) $5.32. Soldered them in and replaced the motor works like new. Hope this helps. A Lot better than a $150.00 motor. Fyi the original sensors are the cheapest available not surprised.
Another question for you. Did you remove the circuit board or solder them with the board in place. If you removed it does the little disk on the top of the motor shaft just pry off? If so does it need alighnment marks to put it back in the same position? Do the little nylon brackets come with the new sensors?
Thanks again, Mike