?hey Imran,?

Here are the various combinations of things that happen.??

When all the motors are plugged in:

1. If I have the mode switch in the planer position and then turn on the circuit breaker, the planer makes a racket and surges back and forth without me touching the start button.
1a. If I lift up the planer table so that the limit switch is open, have the mode switch in the planer position, and then turn on the circuit breaker, the planer makes a humming noise without me touching the start button.
2. If I put the mode switch in table saw or shaper, have all the limit switches in the closed position, and turn on the circuit breaker, planer still makes a humming noise.
3.? I tried with the planer motor disconnected.? When the circuit breaker is turned on, there is no noise at all, confirming that the humming from #2 was comming from the planer motor.? If I push the on button in either table saw or shaper mode, their respective motors start making a humming noise

When i talk about the limit switches, i'm talking about the one on the shaper door and the one under the planer table.? Open means that it is not in the run position and closed that it is in the run poisition.? I made sure that the one on the shaper door was in the middle position.? the E-Stop was pulled out in all scenarios above.? The humming noise is the same as when i used the turn off the machine previously and the e-brake was engaged.

Could it be that the position switch is not working correctly since there is some power going to the planer motor if it is plugged in and I turn on the circuit breaker?

Thanks,?

Annu