Waldy for Model Number 110.4786291 Washing machine is a 3 speed (1750/1150/850 rpm motor) and, during the extra slow wash cycle it will stop mid cycle with a hot electrical smell present. It's definitely the motor that is heating up and tripping the built in thermal. This appears to only show up on the extra slow cycle. Once the unit cools, it can be 'restarted'. I put a clear plastic cover over the start switch (in place of the red fiber board cover) to watch it run and the start contacts open as intended when the motor spins. At the extra slow speed (the 850 rpm), the motor makes quite a grinding/growling noise (like a pump cavitating). The noise is the same with the pump removed. The motor runs quiet at the two faster speeds - no grinding or growling noise during the wash cycle. It purrs along during the spin cycle - not issues there. I removed the motor and the rotor spins freely - perhaps a little stiff - as you cannot turn the rotor easily with your finger tips. You need a plier to grip the shaft. There's not apparent bearing issues as none can be felt when you spin the rotor by hand. The coupling is in great shape and the gearbox can easily be spun by hand through the coupling hub to spin the drum. The clutch is almost brand new. I'm scratching my head trying to figure out what is causing the motor to overheat, especially during the slowest speed wash cycles when it is pretty noisy. Any ideas?
Answer Waldy, For this issue the most likely cause would be a weak winding on the drive motor which would cause this issue. Read More... Answered by AppliancePartsPros.com | Friday, January 4, 2019