Agitator will not spin but basket spins fine

HI…I have a agitator problem. The agitator is a two part agitator. The agitator dogs seem to be ok because the top agitator assembly spins free in one direction and turns the bottom agitator when spun the opposite direction. However, the agitator will not spin during any cycle. The basket itself spins and seems to be working fine. I would appreciate any help. Thanks.

Hello.

There is two part scenario.
Bad agitator base or bad transmission.
Take the agitator off and see if the transmission shaft is turning.
If it does - replace the agitator base.
The splines inside the base are stripped and there is no grip.

The agitator base [part]AP2906554[/part]

If not - replace

The transmission [part]AP3096209 [/part]

Her are the breakdown diagrams and Replacement parts for Roper RTW4440VQ2 AUTOMATIC WASHER | AppliancePartsPros.com

Good luck. Post the results.