How to Troubleshoot & Replace Bosch AP3737683 / 00422245 Valve-Magnet

Our Bosch NEXT 300 washer cold water valve would occasionally stay open during the wash cycle. Unplugging the washer had no effect and the water would continue to run. Turning off the water supply to the washer would allow the valve to close. As the washer is 12 years old, I replaced the hot water valve along with the replacing the problematic cold water valve. Removing two screws in the washer back allowed the washer top lid to be removed. Valve replacement was literally plug and play. Total repair time took 10 minutes. The valves were an exact match. We have run 10 loads since valve(s) replacement and it is working flawlessly. Much cheaper than a new washer. 

Installed new valve. 

I found online that the probable cause was a defective cold water valve. I live chatted with a representative from AppliancePartsPros and she reported that it was recommended that I also replace the hot water valve, which I was already inclined to do. The parts came fast. Online videos showed me how to do the job which was really quite easy. It took only 30 or 45 minutes. Everything seems top be working fine. 

I searched YouTube and found helpful videos. Easily found the water valves and more consumer comments on Appliancepartspros.com. I pulled the washer out and unhooked the water lines. Removed a couple of screws on the back panel and the top pulled off, exposing the water valves and the connections. Each water valve fits in a slot that requires either pushing from behind or gently prying from the outside lip so that the valve will slide horizontally to the side and then slip out of the opening. Installing the new valves was easy, in reverse order. While I had the washer out I replaced the shut off valves as they were old and began dripping when I closed them. I replaced the valves with ball valves and I think they will last longer than the old twist handle valves. 

Bought new hot water valve and it arrived in 3 days!! Works perfect! Schematic was very helpful!! 

Exactly what I needed and received parts next day. 

I watched a quick video on U tube. Then it took all of 10 minutes. 

Also no flow to bleach tray. Replaced the cold water inlet valve. Took longer to access the valve than it did to replace them! Also replaced hot water inlet as a preventative measure. 

Replaced both the hot and cold water valves. 

Installed new cold water inlet valve. Was very impressed on how quickly the part was delivered.