Customer Questions and Answers for Tub Displacement Switch (Pressure Sensor) by Whirlpool

Hello Steve, the washer control does not have an "of" code however it may be an "nf, no fill, in it occurred the rinse fill it would cause the control board to cancel the cycle at that point. Also the control has to see the door opened/closed before a new cycle can be started. The water fill problem usually occurs on the cold water side of the water valve, we would need you to repost your question with the model and serial number in that case to locate the correct water valve for your model.

Steve, when the washer is supposed to switch over to the spin cycle on it's own, the main control would need to be tested at the connection P8 pin 2 for 120VAC and at the connection P4 from pin 1 to pin 4 for a pulsing DC voltage. If either of these readings are not showing up, the main control has failed and would need to be replaced. For the most accurate part information, the serial number would be needed to ensure the correct series parts are identified.

Hello Jerome, The problem can be the wax motor [AP4026523 or the machine control board 12001725. It is also possible on this design to have a harness and/or connection issue.

John, With the unit not responding when you try to turn it on except when you open the door would be a issue that will most likely be caused by a faulty console.

Chuck, You'll need to remove the pressure switch, clamp and rubber cap from the drain pump and clear any of the Styrofoam from the housing. You'll also want to remove the drain pump and drain hose and thoroughly flush those components out as well. The Styrofoam is blocking the air to the pressure switch, causing the washer to overfill.

MAH4000/5000 NEPTUNE NO SPIN ISSUE; Hi Randy. You can temporarily bypass these switches by carefully connecting these together and using elect. tape to isolate these during test. The switch part # is WP22002044. Does the door lock light still light up ? It will not reach high speed spin unless it does. Is the water all out of the tub ? If the pump is clogged or the pressure switch not satisfied (as empty) it will not spin out. Remove the top. Remove the hose from the pressure switch. Blow back into it towards the tub and see if there is a restriction (lint) from allowing the pressure switch to operate correctly. You will need a volt meter for the following test.... Use the L-1 black relay input as a common point for your black meter lead(-). Remember this is all live voltage test. Then use the red meter lead (+) at the machine control board (behind the timer) for output of 24 vdc out put at red wire of p3 connector pin #1. If OK, then put the red meter lead at the p2- conn. orange # 4 wire this also will have the 24 vdc return there if all the tub displacement switches are closed. Then check to see if the spin enable switch (inside the door latch ) sends back the 24vdc at the p-3 connector yellow wire # 7. If so then check the p-4 connector pin # 3 blue wire to see if the board puts out 24vdc to the motor circuit. Then check p-4 conn pin #2 red wire for 24 vdc (may also fluctuate). Then the tach circuit with the yellow wire p-4 pin # 1 yellow (fluctuates with the motor rpm) as the motor increase the voltage increases up to 24vdc. If the motor is at rest, the voltage will drop to 0 vdc. Check P# 4 conn. pin 2 red wire (it is the torque circuit). It also fluctuates the same as the 24 vdc mentioned . The machine control board is part # 22004488. If the door is not locking, then you will need to also change the latch assy. It is part # WP22003593. The motor control board kit is part # 12002039. It comes with the complete motor , tach circuit wires and the motor control board. What is the serial # completely ? Thank You.

Hello Randy. Check the switch WP22002044 and make sure it reads closed. Also, check the wires and make sure none of them are broke. Hope this helps.