We have dishwasher model # PLD4555RFC2. Switched off breaker & in PF mode the start/cancel button cleared the display. Then pressed rinse only & the #40 displayed with no other function. Pressed start/cancel again & #28 displayed. Then no other buttons responded after that when pressed. In about 5 minutes, error clean S displayed again. Would you recommend replacing the control panel or module? Eagerly awaiting your response as the sink is filling up.... Much appreciated!
Answer Hi Matthew. Look in behind the inner door panel just below the control board to find the supplied tech. sheet. This will explain how to advance the unit into a diagnostic mode which in turn shows fault codes. Use a volt meter part # TJMA-DM1 to trace the circuit to find the issue. If the unit is overloaded with suds then the drain pump will cavitate and overheat drawing excessive amps. Use cold water to fill the tub to a normal fill level (below the heater brackets) and then place the unit into a drain over and over to clear it and possibly the interfering code. Make sure the junction box wires are tight. Thank you.