Hi, I have a GE Nautilus dish washer that fills with water and starts operating but then drains again, leaving not enough water for the arms to turn. The float switch is operating fine, I tested the fill cycle while holding it down manually. I am suspecting that it might be the timer switch, since I have the following timing pattern: water starts filling and I start hearing the spray arm turning, at 15 seconds drain opens for the first time (fill valve still open), at 25 seconds drain valve closes (fill valve still open - I can hear water going in), at 39 seconds drain valve opens for the second time, 3 seconds or so later fill valve closes, a few seconds later drain valve closes but it drained out enough water for the spray arms to stop. The timing pattern is the same from the Start as well as from the Rinse position.
I am 100% sure that it's not the float switch opening, since I tested the fill cycle while holding the switch down manually. There is a little bit of leakage coming off the drain valve shaft when it's draining, but that might be a separate problem. There is some corrosion on the drain valve solenoid, but it seems to open and close fine. I am basically trying to figure out whether I should try to replace the timer first, or whether replacing the pump assembly might fix this, or both. Any help much appreciated.
ANSWER Hans, Were it a timer issue, we would expect you to hear the drain valve solenoid engage, it can be pretty loud. A problem with the drain valve flapper inside the pump, or an improper install, could cause the dishwasher to fill and drain at the same time. You may want to remove the kick plate and lower access panel, and observe the drain solenoid WD21X10060 to see if it is being energized, electrically, from the timer, while the machine is filling with water.
Answered by AppliancePartsPros.com | Tuesday, July 31, 2012