GSD4940ZZ0SS General Electric Dishwasher - Instructions

After running a test cycle and realizing the pump was working but not pumping all the water out, I checked the troubleshooting guide and parts list.
I found there was a check valve at the back of the machine and when I removed it I saw it was split causing the water to return into the unit. I ordered and replaced the check valve and the unit is back in perfect operation.

I took the old front panel off which wasn't hard, and replaced with the new panel. The job would have been a lot easier if I had 2 hands, but it just took a little longer. Not much of a problem really! New panel looks great!

followed instructions that came with the part. My dishwasher had a slightly different configuration than what the directions said so disassembly took a few minutes to figure out. Once that was done, the removal of the old impeller assembly and installation of the new went quite smoothly. The replacement assembly had a "grater" which was not present on my original however it installed perfectly and no longer leaks.

Unplugged the machine then removed the two connectors to the motor. Loosenned the hose clamps, pulled the hoses took off the balancing bar,removed old motor assembly and put new one in. Reverse all the steps plugged the machine back on and was done in less then twenty minutes.

Turned off breaker. Turned off water and disconnected water line to make it easy to pull unit out and turn on it's side. Once that was done it was an easy swap out. Exact same motor/pump assembly. Love this site. Thanks

pulled washer out and turned it upside down to get to the pump&motor.
no problem to fix

Removed the 4 1/4" screws holding the rear screen to the bottom of the inside of dishwasher. "Piston & Nut" assembly was badly corroded- to the point that no dirty water was leaving the dishwasher. Because the appliance is at least 10 yrs old and there was nothing happening during the rinse cycle, I initially assumed the worst- that the pump was bad. After reading the other descriptions of the problem here, I said, "what the hell?, if a $20 part fixes it, I'll be amazed- if not, I'm out $20 and looking at another $300 for a new dishwasher!" The $20 part (inc. shipping) did the trick. Thank you, and your website is on my "highly recommended" list! One note- the piston & nut assembly did offer some resistance as you might expect after being "gunked" in place for 10 years. However, the top has some lugs or ears built into it, so a few taps with a hammer on my largest straight-blade screwdriver loosened it right up...

follow instructions found here, with a little help from part diagram. Initially removed the sump cover but then removed the cover at the back of tub. This uncovered the Piston assembly and the replacement was a snap. Dishwasher now works well and actually cleans the dishes. Also did I mention my parts arrived the day after I ordered even though I used standard delivery. This site rocks.

The part that took the longest was taking the washer out from under the counter. The fix was the easy part = 15 to 20 minutes no problems. After putting the washer back and reconecting everything,the first cycle I had some leaking around one of the two big clamps. I had to pull it out again and move the clamps around and tighten them. Much better the 2nd time around, Good to go!! HAPPY WIFE HAPPY LIFE !!!! Good Luck !!

removed piston in filter and replaced. the check valve had come apart and was not sealing

First I removed the four screws from the screen/cover located at the back of the dishwasher. You will notice a mesh screen in the center of this cover. The check valve is under this cover midway between the sides. The check valve is unscrewed counter clockwise. I had to use a pair of pliers to start turning the valve. There are two "ears" on the top of the valve. You will see a rubber cone shaped piece that should completely cover the opening when the plunger is depressed. In my case the rubber was almost completely gone allowing water in the drain hose to return to the dishwasher after the drain pump stopped. The new check valve threads back into the opening and should be finger tightened. Replace the cover/screen and you should be good to go.

Most time spent was removing washer out from beneath the counter. Motor and pump installation was a breeze. Everything I needed was in the kit and easy to follow the instructions provided. Saved a lot of money and washer runs perfect. Thank you.

Removed the dishwasher from under the counter, found where the leak was coming from, which took the most time. We ordered the new part on line, it came the next day and the installation of the new part took about 30 minutes and the dishwasher is like new now. This procedure saved us a lot of money.

Replaced the Piston and Nut Assembly, located inside the dishwasher under the screen at the back, by unscrewing the old one and replacing with the new - Works great now!!

I disconnected the water line on the left-front. Disconnected the drain line at the air-break. I removed the AC power-in box on the right front and disconnected the power lines going to the unit. I took out the two screws holding the unit to the cabinet (above the door) and slid the unit out onto a drop cloth (protect the floor; some water spills). Pulled the unit out and turned over. Followed the directions with the motor & pump valve kit, which were very easy to follow. Then reversed the above. Nut drivers are a must for this job.