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I've repaired several dishwashers in the past but this one has me baffled. My ADB1200AW has low spraying pressure. It seems to fill and drain fine. The tub is full and I even tried manually filling it. I took apart the insides and ran the unit, then quickly opened the door and I can see the the motor is turning the impeller. I inspected all the parts down there for cracks or leaks. There is not enough water pressure to spin the sprayer arms, only a little water will come out of the bottom sprayer in the first 30 seconds. After 30 seconds, I hear the motor running but there is no water spraying at all, even from the bottom. Any help is appreciated.
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THIS FORUM IS DEAD!!!!!!! |
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Rank: Member
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Thank you for the reply. I took everything apart again (for the 3rd time) to check the impeller drive again. The hex on the impeller and motor drive seem fine and the screw is not stripped. I was not able to lock the motor from the bottom so I removed the accumulator, reinstalled the impeller and held the chopper to verify it was not stripped.
At this point I am suspecting the motor, which probably means, whole new unit. What do you think? Anything else I could check?
For what its worth, I recently replaced the door handle but I can't see how that could affect it.
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Rank: Advanced Member
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Here is the tech sheet for this unit, see the attachment. The door switches should not be able to cause your problem. You seem to have done a very thorough job of troubleshooting this unit. So I have to agree with you that the most likely cause is the motor itself. The only other thing I can think may cause this is the capacitor. These are really hard to check as you cannot check them when there is a working voltage on them. Checking it with a meter will tell you if it is a dead short and that it will take a charge but this is done at the low voltage of the meter. With the motor being up around $200.00, I do not know if I would put that many dollars into the unit unless it is in excellent shape. |
THIS FORUM IS DEAD!!!!!!! |
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Actually, it appears you were correct the fist time. With the accumulator removed and the impeller attached, I gave a tug up on the impeller. It came right out! Seems the plastic shaft is stripped where it attaches to the motor. Originally, I was only checking the opposite side of that plastic shaft where the impeller attaches. So I ordered the seal kit (number 9) and I think that will fix it. Thank you for saving me over $400!
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Rank: Advanced Member
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You are welcome
And thanks for getting back to us. Now when others search for a similar problem they will see what actually worked instead of just suggestions about what could be the cause. |
THIS FORUM IS DEAD!!!!!!! |
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Installed the new part today and the dishwasher works great. I see the new part is metal while the old stripped part is plastic. Glad to see it is improved. Thanks again.
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