GE top loader not agitating

Put old coupler back on transmission shaft. Can you now turn coupler? You should not be able to. If you can, grooves in coupler are stripped out. Replace coupler. Part # WH49X10042

What is the model number of the washer?

Check the lid switch if it is a top loader.

Check the water pressure switch for proper operation

same problem

Check lid switch. Most will not run with lid open and the switch may not be pressed down when door is closed

Drum bearings or motor needs to be replaced

To check the agitator. Start the washer into wash cycle. Once started Push down on top of agitator. If it catches some times or all of the time when pushing down, then then doggets are worn, under the agitator. You`ll have to remove the agitator to see these. If by pushing down on the agitator, nothing changes, Then you probably have a transmition problem. Check this and let me know what you find.

ck lid switch can be acessed by pressing clips at front edge of front anel and pulling panel off

check the motor, the timer,the water level indicator in side the machine on the basket it will have a tube with a little box attached to it. It may be clogged or malfunctioning.