How to Troubleshoot & Replace Bosch AP4070550 / 00607335 Water Valve Assembly

Replace water intake valve 

Replace the inlet water valve. The most difficult was removing the clamp from that outlet of the valve to the dishwasher. 

Replaced the water inlet valve. We have very hard water here and this was the 2nd time I had to replace this in 15yrs. 

We changed the part without an issue. It is basically plug and play. I also found a helpful youtube video as well. It works great! 

Found fill valve was cracked and causing the leak. Replaced the Water Valve Asy. 

I replaced the Water Valve with a genuine part from AppliancePartsPros.com. As usual, it arrived super quick using standard shipping (in 39 hours). The hardest part was moving the hose spring clip but even that wasn't too difficult. I figure I saved at least $300. 

I reviewed the AppliancePartsPros troubleshooting guide. The guide was right -on for the cause of my flooding. It indicated the fill valve was leaking. (While Not Activated). I watched the part replacement video. It was excellent. Suggestion: Replace the dishwasher fill line at the same time of your your repair. With a Burst-Prevention valve type line. If your dishwasher is 10yrs or older you risk having a line burst due to continued exposure to hot water. 

Developed confidence in likely problem: Clean water leaking slowly into bottom of Dishwasher (DW) between cycles, which typically covered drain screen within 2 days. Symptoms indicated leaking Water Inlet Valve (WIV). (Our kitchen sink/faucet had recently been replaced, and its nearby hot water shut-off valve was cycled off/on to do so. This may have injected small bits of rubber washer material into adjacent hot water line, including the DW, ultimately fouling its WIV.) Ordered and received new WIV matching our Bosch model #. Closed DW Shut-Off Valve (SOV). Removed DW black metal floor panel (2 long screws). Placed towel on floor under water inlet line and disconnected it from WIV (lower left front). Removed screws and sound baffles holding DW in place and pulled it out from under counter. Tipped DW gently over on its back. Removed 2 screws holding Water Inlet Valve (WIV) in place. Pulled WIV part-way out of cavity; Compressed spring clamp & disconnected Water Inlet Hose. Disconnected electric plug to WIV solenoid actuator and removed WIV. Removed brass fitting from old WIV, Teflon-taped (3-wraps) and threaded into new WIV. Connected electric plug & water inlet hose/clamp to WIV & reinstalled with 2 screws. Flushed DW supply line into bucket by part-opening/closing SOV, cycling on/off a couple times. Reinstalled DW under counter. Reconnected DW supply line to brass fitting; opened SOV, checked for leaks. 

My Super found the exact part on AppliancePartsPros. I ordered it and had it shipped to the building. It arrived as scheduled. Super easily replaced the valve. 

Replaced part in place. Did not remove the door as advised because the Bosch requires you to remove the whole unit in order to gain access to removing the door hinges. It was difficult because of tight quarters but got it done in about 2 hours.