Washing machine?

Either the brake arm is stuck in the out position, usually because the release solenoid has overheated and stuck so it can't drop back or else there is a problem with the clutch spring binding up. You will have to look underneath and check the brake arm. If it is free to move up to and away from the gearbox then next thing would be to remove and check the clutch.

Lincoln Appliance NZ
August 2017

These may give you a few pointers where to look.

https://appliances.wonderhowto.com/how-to/repair-agitator-washing-machine-376365/

http://www.diychatroom.com/f47/washer-agitator-spinner-turns-one-way-but-not-other-35541/

http://www.automaticwasher.org/cgi-bin/TD/TD-VIEWTHREAD.cgi?15992

Acp
August 2017