Have you cleaned the Drain Pump Filter (some models)?
The Drain Pump Filter may be clogged with dirt, lint, or other items. This filter should be cleaned on an occasional basis to keep the washer operating properly.
CLICK HERE for more information about cleaning the Drain Pump Filter or see "Cleaning and Maintenance" above.
Is the Drain hose extending more than 4.5" (113 mm) into the drainpipe?
The drain hose may be too far down inside the drainpipe (standpipe) or laundry tub. Drained water can siphon back into the washer if the drain hose extends too far. Make sure that the drain hose does not extend more than 4.5" (113 mm) into the drainpipe or laundry tub. Using the U-shape drain hose form (as described in the Installation Instructions), will provide the correct length of drain hose in the drainpipe or laundry tub.
Is the Drain hose taped onto the drainpipe or top of the drainpipe covered in tape?
Do not seal the drain hose into the drainpipe with tape. The drain hose should be loose, yet secure. There must be a gap between the drain hose and the drainpipe to allow air to flow through. The air gap will break the suction. This will prevent water from continuously being sucked out of the machine (siphoning) as it fills.
Is the Drainpipe (standpipe) less than the minimum height of 30"?
Check that the top of the drain is at least 30" (76.2 cm) high (as measured from the floor.) If the drain is below 30" (76.2 cm), the water will start to flow out of the machine due to gravity. The flow of water can create suction (siphon) and the water will continue to drain out of the washer.
CLICK HERE to watch a video on proper drain hose installation