Customer Questions and Answers for Dishwasher Pump And Motor Assembly by Whirlpool

Tommy, you can check for obstructions by going into the filter area and you can check the resistance values of the motor. You can test from the control after disconnecting the power. The connection P5 is where you will want to test. Pins 1 to 2, 2 to 3, and 1 to 3 should all read between 11.6 to 13.4 ohms. The only other possibility is that the impeller is bad or there may be clogs in the spray arms.