Hello all! Just installed a used but tested working inducer motor. Part no. JE1DO14N It's an old Weathermaker SX. The old one basically fell apart after all of it's mountings came loose. I think it started with some missing fan blades which set the motor off balance and vibrating. Anyways, the new to me motor will not start at call to heat. However, if I spin it up by hand it revs up and runs beautifully and nice and quiet. I was actually able to get the furnace fully operational by doing this and heated my house up. After hitting thermostat temp, I decided to see if it would start again. Unfortunately no dice. New (used) motor just sat there with a hum and a longing to fire up. :) The fact that I can get the furnace up and running by spinning the motor up by hand makes me feel like things like the pressure switch and other such things are functioning as they should. There is a small capacitor that came with this used motor. Could this be the issue? I tested it and it seems to have the slow build up of charge. I also tried out the old cap with newer motor and it just does the same thing. Doesn't seem to hold a charge though. Going to have my electrical guy test them a bit more at work today but thought I would ask about this here in the interim. Cap part no: CMKS-X345 Like I said, after spinning it up by hand, the motor runs beautifully. Any ideas? Any help would be greatly appreciated!

[left]Older GMP furnace sometimes will call for heat but the igniter stays on for a few seconds then shuts down. Repeat 3 times, no light. Sometimes if I turn the power off or cycle the thermostat it will run fine for the rest of the day. The one flash LED lights on the board. i have cleaned the flame sensor and even replaced it, symptom is still intermittent. HVAC Pro site suggests it’s cracked heat exchanger but not willing to accept that yet (as Spring approaches). im going to put an endoscope in the heat exchanger but not until the outside temp is good one day. Any troubleshooting tips. thanks. [/left]