I'm assuming, which is not always the best thing to do, the the voltage going to the motor should be 115V and not fluctuating between 20.0 and 0.00 volts? Also after unplugging the motor from the circuit board leads, the buzzing/humming noise seems to be coming from a small transformer just below the circuit control board. It's never made that noise before. I checked it's output and it 25 volts, which is what it says it should be on the schematic (115 to 24 volts). I'm guessing that if it's putting out the correct voltage that it's also getting the correct voltage coming in. So does that leaves the board itself?
This motor does not have a separate capacitor.
Thank you very much again for the suggestion to check the voltage to the motor.
Last edited by Dr_Zoidberg57; 11-17-2013 at 02:44 PM.