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Customer Questions and Answers for Timer (Dishwasher) by Ge

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Manufacturer Part
4.89 (64)
By: Ge
Part Number: OEM21648930
Manufacturer Part Number: WD21X33639

This dishwasher timer controls the timing and sequence of wash, rinse, drain, and dry operations. Replacing a failed timer ensures the machine advances through each stage properly for complete cycles and reliable cleaning results.

  • Advances the cycle and routes power to pumps, valves, and heater at the correct times
  • Can cause cycles to run unusually long/short or skip steps when failing
  • Intermittent start/stop behavior during a cycle can also indicate a worn timer
What's included: 1 dishwasher timer assembly Install notes:
  • Disconnect power at the breaker before servicing
  • Access the control console; document wire locations and transfer one lead at a time to the new timer
  • Mount securely and route wires clear of sharp edges or moving parts
  • Restore power and run a short test cycle to proper advancement

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Questions & Answers

For Ge Timer (Dishwasher) (Part Number: OEM21648930)

1 Answer

Joseph, unfortunately, the model provided is not showing as a valid model. If it could be verified from the model/serial tag and provided in a new question, this will allow the most accurate information to be presented.

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1 Answer

Jerry, We will need your model number to help you find the right parts for your unit. Please post another question with all your info included thank you.

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1 Answer

Dan, For this issue with the timer not advancing then this would most likely be caused by a faulty timer on the unit.

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1 Answer

Hello Pat, You will need to check and see if the knob is broken. If not, then you will need to replace the timer on the unit.

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Jerry for Model Number GSD2200g02ww

Dishwasher won't fill. Checked for water pressure and debris in overflow float, both OK. Tested the water control valve for continuity across its terminals OK Replaced water control valve, no difference. Replaced the overflow switch, no difference. Checked for power to the water control valve connection. NO POWER to the connector. Checked continuity from the timer plug to the water control valve connecter, good continuity so not a broken wire. Pump runs so there's power to the timer. Do you think there's a problem on the timer not sending current to the valve?

1 Answer

Jerry, If all other check looked good and when testing for power to the valve there was none and the wiring is good then the timer WD21X33639 would be the issue.

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1 Answer

Joe, You will want to check to see if the timer is sending power to the other components but would most likely be the issue.

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Andy for Model Number GSD2200G00CC

Sometimes my GE Nautilus dish washer works fine. Other times, when the switch is turned to start, you can hear the water come on and fill but then nothing happens, but you can hear the timer continue to click. When this happened the other night, I moved the timer to where I thought it would drain so I could start over, but it just hummed. I tried to start over anyway and the water over flowed. Bailed out the water, took the basket off the drain exit and found a couple small pieces of debris, nothing major. Moved switch to a drain position and it worked. I started the cycle over, it filled with water and stopped. Moved switch, drained the water out, started over and the machine is now running through full cycle--once it starts "normally", it runs through the whole cycle with no problem. My question is: is the timer faulty?

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