GDT720SGF0WW General Electric Dishwasher - Instructions

So after noticing some horrid food waste build up in my 9 year old dishwasher, I determined it wasn't heating the water during the wash cycle. I came on here to check how to replace the heating element and was surprised when the flood switch was instead strongly recommended as the first repair step.

I ordered the part, and prepped the dishwasher for the repair (Pro-tip: Clothes pin attached to the bottom of the flood switch wiring harness ensures it doesn't slip down below the opening during the part swap!). The part swap and reassembly only took 5-10 mins or so after prep and dishwasher is now heating water and running great again. Many thanks to partselect.com for the detailed installation guides/videos and the parts recommendations!

Followed video instructions step by step.
I was fortunate i had enough slack in water, electric and discharge lines to avoid disconnecting.

Two wrinkles
1. wire clips on my door had to be pulled/pried loose from door and there were two not one

2. could not slide dishwasher out after lowering adjusters and figured out it was the mounting tabs bumpimng the granite countertop, thus the use of putty knives to slide the dishwasher out.

The old gasket pulled right out with no tools needed,
The new gasket went in the same way.

Results:
It did help on one side, but the bottom gasket also needs to be replaced it has a couple of tears one on each end.

Next Steps:
When the bottom gasket gets here I will replace that and it should be as good as new.

Super easy repair, just removed the old latch and replaced it with the new one.

The pieces just twist and snap together. You have to align the conduit with the interacting items before sliding and snapping into place. The problem happens when the bottom rack is loaded too high and the bottom items hit the spray head.

Replaced latch

took off 2 sheet metal on the bottom, lowered the dish washer, pulled it out enought to unscrew 2 screws, unplugged the old part plugged in the new, put it back together.
Works like a champ.

Removed the top two screws that hold the dishwasher to the cabinet , remove the two screws on the bottom panel and remove the panel. Screw the levelers all of the way up and pull out the dishwasher about 6 to 8 inch. Hook the new cabe on the spring and pull around pulley and attach it to the door bracket. I replaced both cables. Reverse to complete.

Drain hose elbow (#326) had a crack in it. Disconnected power, slid dishwasher out and laid on its back. Hose had two pinch clamps to remove. Replace old hose with new one and used standard hose clamps. Put dishwasher back in place and hooked power back up. Entire process took less than 30 minutes. PartSelect had elbow for about $6. GE does not sell just the elbow. They sell whole pump setup for about $106.

Took off the door and separated the two door pieces. Unscrewed the old dispenser and replaced it with the new one.

I followed the U tube instructions already put out part select.

Looked upm the problem it said door wasn.t closed so cause was the door latch. put in the new one no change so I bought a new dishwasher

Had to trouble shoot to isolated the true fault condition. Checked heating element was good
Researched symptoms on YouTube
Removed and inspected float switch part
Ordered and replaced part.

I tested Heating Element with Ohm Meter-Direct Short (if open it would have been bad and I would need to replace the element. Per the Website Troubleshooting for GE dishwasher, it said Heating Element (65%), Float Switch (32%), or Computer Board (only 3% Chance of it being board). So I ordered Float Switch. Later I noticed that the dishwasher would not change wash cycles from Heavy, Normal or Light.
So I turned the Circuit Breaker on and off. This fixed the Wash Cycle.
When the Float Switch Came in, I installed it in a few minutes watching the video on the GE Troubleshooting Page. Later when it was running I checked the operation and when I opened the door, the wife says seeing the steaming water, You fixed it, the Water is Hot now ! It was all about Hot Water, not the Heating Element at all ! And I think everything was fixed when I flipped the Circuit Breaker on and off and re-set the computer board. I think replacing the Float Switch was good maintenance, cause it was really dirty and needed to be replaced soon anyway. And it may have avoided my wife's next misdiagnosis with our dishwasher. This was 2 weeks ago, and all is well.
Sincerely,
Scott

Followed the instructions on the video, it was pretty straight forward. It was helpful to know what to expect before hand like removing accumulated water in the drain before removing the flood switch so as not to have that water drain under the dishwasher. Knowing to have a nut driver with magnetic tip was helpful in removing and reinserting the screws. all in all it was pretty easy repair.