MDB729JB119 General Electric Dishwasher - Instructions

replaced pump and motor with new one. worked but pump would not empty the water. ordered additional parts check valve,seal and box that check valve screwed into. did not fix problem. Got to looking at replacement pump and discovered thet discharge solonoid was not completely opening the discharge port. I could hold it down manually and the machine would empty. I reported the problem to parts select and they without question shipped me a new pump and motor. took the dishwasher out of the wall again and swapped them out, and now it works fine. the repair was easy and simple. the difficulty was taking the dishwasher out and reinstalling it 3 times. I will use parts select again if the need arises.

Remove lower panels, turn off hot water supply, Turn off breaker to dishwasher. notice how power connector is orientated and how valve is mounted to chassis of dishwasher and remove Molex connector which supplies power to valve. The power to the valve is 120VAC when the timer gets to the appropiate cycle I measured the valve with no connector attached with DVM set to Diode or ohms setting and got about .825. I measured the NEW part and measure about the same. Have towel under valve hoses for small amount of water will come out. remove small diameter hose , inlet water supply, remove 2 screws holding part with nutdriver to remove valve which exposes the black hose attached to valve. Hose has a hose clamp, use pliers to remove. good time to check and clean hoses. I unwrapped a coat hanger to run through the hoses for debris. to INSTALL reverse the above. clean water away from floor with towel. Turn on hot water supply, check for leaks, I did not have any leaks. Turn on breaker. You can stick a stubby screwdriver into the door close switch of front door which enables you to turn on (swing arm) dishwasher with door open to check water pressure. I have a great deal more water pressure and water from jets spray much higher than before. Old valve was clearly bad, but solenoid of valve still worked, which sucks in the arm when energized. I used a DVM on the 2 wire connector on valve to check for 120vac when cycle turns it on-measured good. I still don't have quite the same cleaning as before. It is 80% better, but something is still not right. My wife put in one of those pot cleaners (red) mesh plastic thingy on top rack--and found pieces of red mesh plastic in debris area, cleaned it out as best I could removing the 2 covers, but not sure valve is opening there or debris is clogged in there which sends pieces of food, etc. through hose to garbage disposal. Hose wasn't clogged. Cleaning better but wife is still saying not as good. The Pump is running good, cleaned dust and dirt out of pump with vacuum. 10 years old, thinking of removing dishwasher from counter and checking the pump area or change it.

took the moter off and the impellar off replaced the impeller .back and turn the washer back on but it still wouldnt .wash .the moter wouldnt turn .so had the moter tested and it was the moter . found out how and what to look for on you tube .it was a big help in how to fix your washer .typed in model and what kind portable .it was easy .thank you for haveing my part also .and shipping was real fast .

I pulled the old basket out with my right hand and inserted the new basket with my left hand! HA! Maybe 5 seconds!

Just plopped it in, it fit perfectly! I love it! Very easy to order the part, and very fast shipping! I order it and it took a day to get to me!

Just set it in as it was exactly as described and ordered.

very easy like you said

Piece of cake. All done and working just fine.

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.

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...

Looked online for a general cause. ABout 60 to 80 percent, the cause was the piston and nut assembly located in the back of the dishwasher. Ordered the part and installed in nothing flat. Only four nut screws to remove the take the filter off and unscrew the piston and nut assembly. Next cycle, no water and the drying cycle seemed to be better. Guess because no water in the bottom of the dishwasher. Good input and fast turn around on the part.

Followed the directions from the website and removed the plastic screen from the back of the washer (4 bolts). The Piston and Nut assembly was easliy removed with a few turns, popped the new one in, and re-installed the screen. Everything works great.

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

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.

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