Scott M for Model Number MDBH989AWQ3 Maytag Dishwasher Model# MDBH989AWQ3 The dishwasher doesn't turn on "Sometimes" (serial# FY4601375 I know I have power to the unit because some of the lights will come on when I press them, The DRAIN button works as usual but when I press the NORMAL button, the light doesn't come on and nothing happens. When I press the LIGHT or HEAVY buttons, those lights come on as if I can select them but when I hit the START button, nothing happens. I assume the door switch is working because the DRAIN PUMP works. I was informed that be pressing these buttons in this sequence SANITIZE-HEATED DRY-SANITIZE-HEATED DRY that would reset the control board and after doing that, sometimes the NORMAL light will turn on but very lightly (hard to even see)but sometimes it still won't work. What part should I replace?
Answer Scott, you most likely have a faulty control panel / key pad assembly W10811159 "PROBLEM: One or More Keys Won’t Respond - Open key or LED circuit(s) on the keypad, or open circuits on the control to the keys and LEDs.- OPERATION A rapidly 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 either the control or the keypad. To determine if the control or keypad is faulty, do the following test: 1. Unplug dishwasher or disconnect power. 2. Open the dishwasher door. 3. Open console and disconnect the keypad ribbon connection from the control (at P1). Make sure all other connections are made. 4. Put console back together. Do not close the dishwasher door. 5. Plug in dishwasher or reconnect power. 6. Wait 5 sec. 7. Close dishwasher door. 8. Monitor the control’s response: ?If the control is OK (no longer sees shorts with the keypad unplugged), it will respond by turning on the Drain Motor for 2 minutes. Check and/or replace the keypad if the control responds OK. ?If the control is not OK (still sees shorts with the keypad unplugged), then the drain motor will NOT if the drain motor does not start within 10 sec, repeat or verify that all the steps were followed, then replace the control." Thanks and Good Luck Read More... Answered by AppliancePartsPros.com | Tuesday, January 10, 2012