My dishwasher runs for approx 3-4 hrs, even on Delicate/Econo mode. It sounds normal until the timer runs down to 1 min and then just runs for about 1-2 hrs and will eventually finish with "CL". The dishes are hot, but don't appear to be as clean as they should be. I can Cancel/Drain when I notice the "1" appearing with the same results. It appears that the dishwasher is still washing (?) during the "1". I recall the dishwasher being quiet during the heater drying cycle in the final minutes. Does this sound like a control module, heater or thermistor issue ?
ANSWER Hi Takman. First open the control board and see if you have 120 vac output from the control board to the heater. You need to do this while the unit is in a diagnostic mode. There should be a tech. sheet in the control board or the lower kick panel. If you do not have 120 vac out on the red wire at the board then gain access to the board and examine to see if there is a open solder joint on the board. You can use the door switch neutral for your meter black lead. Test the heater part # 00480317 for continuity while you are at the board.The control board is part # 00266746. Control Module - Made by Bosch. Common program control module for Bosch dishwashers SHU53/68. NOTE The manufacturer has redesigned the cover and indicator lights. Lights may be covered by the plastic case. You may have to remove the square covers over the indicator lights if needed. The same case is used for 6 and 8 indicator light models. They also no longer use the red bulb indicator lights, small surface mounted lights are used instead. Thank You.
Answered by AppliancePartsPros.com | Friday, January 06, 2012