Show failure code F51

FYI, I rotated the drum from the top & was able to get the unit running for now

This has been a troublesome issue for Whirlpool and many of Whirlpools customers. The F51 code indicates a problem with the RPS (Rotational Speed Sensor) that monitors the motor speed. This issue has been identified as relating to the the connection system between the RPS and the controller.

Whirlpool has changed the RPS connector design, providing a more reliable connection and is available as a service kit. The control has also been updated for better sensing of the RPS. Also, if you have experienced problems with certain wash loads getting tangled and knotted, there is also an update washplate intended to reduce this issue. You should contact Whirlpool for possible repair concessions related to these issues.

If you would like to get to the RPS and try cleaning it.. Here's how:

In some cases, the F51 code can be fixed by cleaning the RPS connector. The RPS is located on the motor armature underneath the machine.
1. Tilt the machine backwards, resting the console against the wall.
2. using a disposer tool or suitable hex wrench loosen the center stator screw completely (the screw is captive and will not fall out of hole).
3. The stator contains a series of strong magnets and will take some tugging and wiggling to pull off.
4. Remove the 4 bolts that secure the armature to the tub. CAREFUL this assembly is a little heavy, support well before removing last bolt.
5. The RPS is attached to the armature. Remove and insert RPS connector (the one with 6 wires) 10 times to 'wipe' the contacts providing a cleaning action.

If you need further assistance, let me know
Regards,
reg501

for the f51 code there could also be a sock or other material stuck between the inner and outer tub. spin the inner tub, it should spin freely.