Both are RPS sensor errors...

You'll prolly need to update the sensor, harness and control.

Ouch

Sensor and harness ==> Part number: W10183157

Control ==> Part number: W10189966

Also check for clothes or foreign objects stuck in between the inner wash basket and the outer tub and for a loose bolt on the rotor at the bottom of the machine.

RPS= Rotor Position Sensor

Source: wp cabrio wtw6600sw