*** Error Code 01, 02, 03 or 04 can be the SWITCH, the wiring connection to the switch and back of circuit board,
it could be a weak motor
OR it could be "drag" on the motor because the Rotor Disc is worn
OR it could be the Seal Kit and Rotor Disc need replacing.
* It's not "cut and dry".
Any of these or a combination of these can be the reason.
see: Trouble Shooting List
An Error Code means the circuit board is not getting the "signal" from the switch ( that is riding the Cam Gear ) that it has reached the next Cycle in the proper amount of time.
The circuit board is telling the motor to turn ... sending it power, and the circuit board is programmed to wait for the next "signal" from the switch only so long before it will "sense" there is a problem.
Result is you see an Error Code.
I always recommend checking each component involved, starting with the switch.
Best case, you've got a loose connection in your wiring or the switch is bad.
Worst case, you need a new motor, rotor and seal kit.
** Wiring harness is critical, so be careful to inspect the connections to the Switch or Motor ( if it is failing to move ) as there could be a poor connection.
Problem can be corrosion of the harness or the pins on the back of the PWA ( timer ) circuit board.
This could include a "cold soldier" joint at the pins where they "attach" to the circuit board.
* All the items and prices can be found on our website. SEE: NORTH STAR, SEARS, GE, WHIRLPOOL