How to Troubleshoot & Replace Ge AP3794323 / WD12X10109 Fine Filter

Removed and cleaned all inside components of dishwasher. Replaced the sump inlet and fine filter. I decided to complete the repair myself when my appliance repairman did not want to help me. The videos from Appliance Parts Pro are AMAZING!!!! Gave me the confidence to do the repair myself (had to fully uninstall the machine and flip it over). THANK YOU!!! 

Our GE was installed about 8 years ago and was AWESOME for much of its early life. However, progressively its cleaning ability diminished. By replacing all the spray arms (clogged with debris), filters, drain hose, and sump...this dishwasher cleans like it did when it was new! Cost was around $100 (also replaced a wheel and the silverware basket) and labor was relatively simple. And to think...my mother-in-law said, "Wouldn't it just be easier to buy a new one?!?". 

I replaced all the spray arms. The "Filter Fine Assembly" extrusion was improved to eliminate the washer rubber which deteriorated over time. Everything works fine and the dishes are now spotless. 

Your videos were excellent, and explained how to remove parts to get to the problem. The sump was breaking up, loaded with white stuff which broke off and was clogging the spray arms with bits of stuff. I ordered a new sump, a fine filter, and lower spray arm which mine was almost totally clogged. Another video showed me how to remove the dishwasher from the cabinet and replace the sump with my wife's help. After replacing these parts, I ran the machine without a load. The first load of dishes showed that it was performing like new. My wife's delighted. I can't say enough good things for your company. Totally five stars!! 

Decided to replace the fine filter assembly and along with it the lower and middle spray arm. I have tried cleaning these with a tiny brush and was able to remove some gunk out but they do not come a part so thought it best to just start with new. The filter and lower spray arm were easy to just take off and the new just fit right in. The middle spray arm part was a little different then the original. It comes with a new metal screw and washer and a plastic part that is attached to the bottom of the upper rack. You have to remove the old part that is held on by one screw and attach the new part so that the spray arm fits. Not sure why they would change it since the old set up seemed fine but you have to either take the whole upper basket off its track and out or try to work upside down. I opted to take the basket out by prying the plastic end pieces out of the track and sliding the basket out. It was an easy fix and now my dishes are clean with out a film and dirt residue left on them. 

I look at the diagram of the dishwasher. Once I id the parts were broken and too old, I watched some of the video instructions. Immediately the parts arrived, it took me about 30 minutes to replaced them. Now my dishwasher sound like new. It is actually a lot quitter than before. 

Disassembled dishwasher parts: Fine filter, intake screen, coarse filter, took apart upper spray tube from pump discharge. Removed all these and scraped and wiped as much of the material as possible. Then used an HCL-based toilet bowl cleaner with water to scrub off and dissolve the material which was an amalgamation of grease and detergent/soap. The low pH of the toilet bowl cleaner broke up the material which citrus degreaser and dishwashing detergent could not touch. It was surprising how much goop there was and how many holes in the strainers were obstructed. I also fed the HCl cleaner into the spray arm and this cleared it out. After completely cleaning all surfaces and rinsed and wiping down as much as possible with water, re-installed the part, filled the sump with hot water, and cycled the pump out. Then I ran through a cycle with approx 1/4 cup sodium carbonate ("washing soda") in the detergent dispenser, followed by a cycle with a dishwasher cleaning product. Result -- vastly improved flow, no more goop. 

I ordered a new fine filter, and followed the How To video closely. I have zero skill, and have never successfully replaced a part in anything, but voila! I did it, and so far it seems to have solved the problem! Yay! 

We replaced lower filter, lower arm, upper arm, rinse aid dispenser, and a few gaskets. 

Disassembled and thoroughly cleaned out all the crud and buildup.