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I have a Whirlpool DU810SWLQ0 that will not drain. I've pulled the unit out, snaked the drain tube, pulled the motor/pump, and pipe assemblies, and cleaned the food trap, which I also removed. I've run the dishwasher with a bit of bleach, and the water will pump in, get processed by the agitator, and be heated. When the rinse cycle comes, dishes get covered in food, and are never clean. Waste water was being used for a clean rinse. I've run the dishwasher with the drain dangling in a bucket, and observed no flow. The motor is a dual polarity motor, and it actuates in wash and rinse cycles. I also replaced a diaphram in the waste pump assembly, since the old one was out of shape and blackened. The only other odd thing I noticed was after I yanked open the front door in the rinse cycle. A bubbling trickle of water was coming from the center of the dishwasher by the agitator head, which usually has flow only during the wash cycle to my understanding.

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  • elsrik Sep 04, 2010

    cmmiuser responded quickly, and with the correct answer. I believe my initial problem was the diaphragm, which I replaced, but I had reassembled the parts for the drain trap incorrectly. cmmiuser's response addressed this specifically. Problem resolved!



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Refer the wash system assembly dwg. Check if the ball (item 21) is sitting correctly. If it is out of alignment that could cause the problems you are having.

Posted on Sep 04, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Sounds like a clog, either the drain tube, drain hose, or drain pump/diverter valve.
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The FL error code means:
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Press STOP/CANCEL to clear the display.

This problem I see on these are the water pumps getting clogged with lint or other things, causing the pump not to pump all of the water out at times.

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Calypso Service manual:

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1 Answer

FL Code on whirlpool calypso

Flood Condition - overfill; excess water in the tub. With this condition the beeper repeats a warning every 10 seconds with no timeout. The pump is cycled in drain mode for 30 seconds on, 30 seconds off until the overfill switch resets or power is disconnected from the unit.

May be a sign of a pump motor problem - clog, jam or failure. There is a redesigned single piece pump/impeller assembly that you should upgrade to if the unit doesn't already have that kind, if it turns out the pump has failed.

You may be able to clear the fault by removing debris from the pump water tubes or impeller. I've had to disassemble from the bottom of an unplugged unit to get a draw string out of the impeller, or a sock out of the ball valve which reverses the flow of water when the pump changes direction.

Takes a little practice, but it can save big on repair bills if you are comfortable poking around underneath a drained washer. Problem is, when you have a FL condition, you may have to bail out the water or use a wet/dry vac to **** it out of the drain tube, to avoid a mess in the wash room.

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