Customer Questions and Answers for Pcb (Mems) Sensor by Whirlpool

Richard, The "hall" sensor is an internal circuit of the motor. It "tells" the machine control board, what the motor is doing, it's similar to a tachometer on the dashboard of a car. In your case, you want to do the resistance checks on the wires of the CN9 and CN8 connectors at the main control board in the front of the washer (it's easier and more indicative). Unplug the CN9 connector from the control board(red, white and blue wires) testing the pins inside the wire harness connector: from pin#1 /blue to pin#2 /white you should read 3 ohms resistance from pin#1 blue to pin#3/red, you should read 3 ohms resistance. from pin#2/white to pin#3/red, you should read 3 ohms resaistance. That will tell us the motor windings are damaged or not. At the CN8 connector, unplug the connector from the control board and insert the meter probes into the end of the wire harness connector; pin#4/orange to all other pins in the connector should have infinite resistance. pin#3/blue to pin#1/pink should have 4.7 ohms resistance. If you have these resistances, the motor and wiring are OK and you'll need the control board. If the resistances are not within 10% of the ones listed, you'll need to check the wiring harnesses and connections from the control board to the motor, and replace the motor if all checks OK. here's some meter usage information, if you need it. [http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html] Good Luck.