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Customer Questions and Answers for Configured Mc Board by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM21656034
Manufacturer Part Number: WD21X31900C

The Service Machine Control is an OEM part for GE dishwashers. This part oversees and manages the various functions and cycles of the appliance. Acting as the brain of the dishwasher, this control unit receives input from the user and sensors throughout the machine, then directs operations such as water intake, temperature regulation, cycle duration, and drying processes.

Causes of a bad Service Machine Control can include power surges, moisture exposure, or physical damage to the circuitry.

Symptoms of a bad Service Machine Control include:

  • Dishwasher failing to start or complete cycles
  • Inconsistent cleaning performance
  • Unusual noises or error codes indicating faults in the system
  • The dishwasher not responding to controls or inputs

This OEM GE part is also compatible with Hotpoint, RCA, and some Kenmore models.

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Questions & Answers

For Ge Configured Mc Board (Part Number: OEM21656034)

1 Answer

Scott, With this issue, the control board will be the most likely cause for this issue.

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1 Answer

John, If the door switch has been replaced. This will most likely be caused by a faulty control board since the door switch is directly connected to the board.

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1 Answer

Paul, It would be recommended to check the main control board. There will be an LED flashing that will tell you if there is an error. The amount of times flashing will tell you the error which you can check against the tech sheet to find out what it represents.

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Mark for Model Number CDT835SSJ2SS

I am getting the door open error on this dishwasher with the flashing yellow light on the door and three beeps. I have replaced the door latch assembly to no avail. I also purchased a reconditioned control board from another vendor and installed that also to no avail and getting the same error. I considered the possibility that the reconditioned board was also defective, but on my original and the reconditioned one I got no fault codes at all when holding down the Start and Select Cycle buttons. Other people got a code 815 for the door open problem. Do you have any other ideas for what I can try? I really don't want to buy a new board that I cannot return if it doesn't work.

1 Answer

Mark, if the door is leveled and closing properly, the door latch would need to be tested from the main control after turning the power supply to the appliance off. From the control connection J711, the tan wire at pin 3 would need to be tested for continuity to the violet wire at pin 4, then from the wire at pin 3 to the white wire at pin 5 while the door is closed. If there is continuity on both sets, the machine control is faulty. If there is not continuity, the door latch would need to be tested directly while the door is closed. From the wired terminal at pin 1, there should be continuity to the violet wired terminal at pin 2 as well as from the tan wired terminal at pin 1 to the white wired terminal at pin 3. If there is continuity at the latch but not when testing from the control, the AC wire harness WD21X24096 would be the cause of failure.

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