I looked for my whirlpool duet model on this website and the search returns page not found. Model WFW9151YW00 has an F3E2 error code. I believe I need a new water inlet valve assembly. If you think this may be the correct solution, I would like a link to that part and a download link for the service manual for my model please. Thank you for you time and expertise.

The F3E2 error on that model is the same as the other models listed. It's an error that means the temperature sensor is bad or there is a wiring issue between the sensor and the board. Usually, in most cases, you just replace the sensor and that will fix the problem. The sensor you need can be ordered from the link below:

https://prismparts.com/products/for-whirlpool-duet-washer-water-temperature-sensor-pp6881206

The video linked below shows how to replace it:

https://www.youtube.com/watch?v=UoEfuLRJEzI