front load washer no agitate or spin

my washer will run through the normal cycles but without agitation or spinning of the laundry…It has been an intermittant issue . the door shows locked and i dont believe it is a motor issue could it be the control speed circuit board part number ap2107536. Does this component control agitation of drum (or tumbling) and spin thank you

Well the obvious choice here is a broken belt, but I assume you checked that.

Use the service manual (page 50) to check since if the belt is not broken I imagine the motor is not turning.

http://frigidaireservicetips.com/pdfs/360_TumbleActionWashers.pdf