MY WHIRPOOL WASHER WILL NOT SPIN AT ALL, even if I try to spin it by hand. The motor and pump are working

Not sure if this is a top load or a front load. A Model # would help.

If it is a top load machine, you won't be able to spin it by hand because of the brake. Does the machine agitate? If it agitates but doesn't spin, it could be a problem with the gearcase. If it doesn't agitate either, it could be a problem with the motor coupling. The motor coupler is between the gearcase and motor and sometimes will fail.

Thanks a lot for your response and advice. You are right. The problem was with the coupler

Mscreation, your going to be a valuable member here.