Valve, Check

Mike S for Model Number KUDS01FLWH2

Answer Mike, You will want to make sure that the check valve is not damaged and you will want to check to make sure that your drain is not clogged. It does sound like the check valve would be the issue. 

Steve for Model Number Kenmore Dishwasher #665.17602301

Answer Steve, The check valve being defective can certainly cause the back flow into the unit. You would need to check it for damage. Also check to make sure that the drain hose has a loop in it as an air gap. 

Chip for Model Number DU1145XTPBA

Answer Hello Chip. No, it sounds like the valve is not filling the water up to the correct level inside the unit. It should fill to the bottom of the heater. If the fill is correct, the only thing would be a siphoning issue due to the drain pipes in the home backing up. The check valve is used to prevent water from flowing back into the unit, not letting water out. 

Trace for Model Number du1345xtvb2

Answer Trace, You access the check valve from the sump body, it's located under the inlet protector. We'll send you some additional information to help you out. Thanks Again 

Trace for Model Number du1345xtvb2 whirlpool

Answer Hello Trace, To remove the part you described, you need to remove the water tower that runs up the back wall of the unit. I usually pull up on the release on the rear of the internal rear feed cap and rotate it about 1/4 turn to the right, (clockwise). This will allow you to raise it up off of the center of the accumulator assembly. You can now remove the forth screw that was previously hidden under the feed cap. The accumulator should now lift up and out of the machine. The main thing in this area that you should check and service is the chopper assembly 8268383. If the chopper blade shaft is broken, you will see a lot of food particles on the chopper screen which is located under the two plastic covers in the bottom of the sump area. You can disconnect the drain line from the drain under the sink and blow into it. If the check valve is operational, you will not be able to blow through it. If you hear the air you blow through it in the bottom of the tub area, the check valve has failed. When you get into the sump area, the check valve looks like a black stripe as you can only see the edge of it. 

Confused N.c. for Model Number whirlpool GU2455XTSQ0

Answer Hi Confused. Remove the drain hose from the pump connection and install the check valve that prevents back flow. Part # 8268375. It is located just inside the pump output. It may be ripped and not effective. Also make sure your drain hose is looped and secured to the uppermost back wall of the sink. Then sloped, and taught into the sink connection as so the sink will not back up into the P-trap.Thank You.