whirlpool dishwasher diagnostic mode | Lights Blinking Flashing how to enter diagnostic mode whirlpool dishwasher whirlpool dishwasher diagnostic mode,whirlpool dishwasher diagnostic mode whirlpool dishwasher diagnostic mode displays an error code or flashing light? If your dishwasher detects an error in the system, it will show a suitable error, flash the lights, blink, or show a