Whirlpool Front load washer drain pump runs constantly

My washer was showing SUD error and then F21 error codes.

I removed drain plug and cleaned out. Nothing in there. i also cleaned our drain hoses from pump to wall drain. again little to no problems.

I replaced the drain pump and still have the same problem only now I have additional problems.

1. SUD displayed
2. F21 displayed
3. drain pump runs constantly (have to unplug to stop)
4. when I plug the machine back into wall socket, I hear a couple of electrical clicks and then drain pump starts again

Front door is locked and i can't get the machine to cycle so i can open door.

Any thoughts?