Try this; Make sure the machine is empty and no soap. Open the dishwasher door. Turn off the circuit breaker or remove power from the machine. Close the dishwasher door. Wait 30 seconds. Restore power to the machine.
Press: Heated Dry ➙ Normal ➙ Heated Dry ➙ Normal
Invoking Service Diagnostics clears all status and last ran information from memory and restores defaults; It also forces the next cycle to be a sensor calibration cycle. Calibration cycles begin with a “sensor check” to determine whether the dishwasher has an OWI soil sensor or not. If the control detects an OWI, it forces two rinses to occur prior to Final Rinse (to assure clear water), then calibrates the OWI during the final rinse.
I'll assume the wash motor and drain motor are working if it completed the service diagnostic cycle.
A blinking LED over one of the keys of the keypad (or sometimes a “dead” keypad/console) indicates one or more key switch lines are stuck or shorted on the control board or the keypad. To determine if the control or keypad is faulty, do the following test:
Unplug dishwasher or disconnect power. Open the dishwasher door. Open console and disconnect the keypad ribbon connection from the control board (at P1). Make sure all other connections are made. Put console back together. Do not close the dishwasher door. Plug in dishwasher or reconnect power. Wait 5 seconds. Close dishwasher door. Monitor the control board’s response.
➔If the control board is OK (no longer sees shorts with the keypad unplugged), it will respond by turning on the drain motor for 2 minutes. Replace the keypad if the control board responds OK.
➔If the control board is not OK (still sees shorts with the keypad unplugged), then the drain motor will NOT respond. If drain motor does not start within 10 seconds, repeat or verify that all steps were followed, and then replace the control board.