My dishwasher won't start. This began when the door latch got broken. I installed a new latch, still no go. Only keypads that light are "heavy wash" and "auto clean". No other pads light. I inspected the latch. It looks ok. I pulled the control panel. Only thing I see is that the ribbon has become dark brown at the conductive lines just as the ribbon comes out of the keypad and the brown stops just as the conductive lines become wider. I pulled the circuit board - both sides look ok (no scorches). I tried to run the field service test. Nothing happened. Tried to run the manual test. Nothing again. Is it the control board?
Answer Hello Mark,
This sounds like the control panel itself has failed. If the lights stay on constantly, this is an indication that the buttons corresponding to these lights are stuck. If this is the case, the control panel 6-919820 will require replacement.
Will Not Start Or Program
Check incoming voltage to Control Board.
Check for proper operation of Membrane Switch. See
membrane readings on the Technical Sheet located
behind toe panel.
Make sure the pin connectors are making proper
contact with pins on the Control Board. If the
voltage is correct into the Control Board, and the
board will not activate, replace board.
Systems of a defective control panel and also a circuit board?
Answer Bob, the symptoms for both components are the same. Only certain selector buttons work, All keypads are inoperative, Your first check, is to remove the inner door liner to access and test the door switches, both switches have a closed circuit when the switch plunger is depressed. You also need to insure you have 120 VAC at the switch terminals. You'll find the tech data wiring diagram located behind the kickplate panel, in a plastic bag/envelope. You can test the resistance of each keypad using the data sheet. The control panel/keypad assembly 6-919820 is the weakest link in the system and is the most likely issue. Thanks and Good Luck