I replaced both the solenoid (part of the inlet valve kit) and the pressure sensor. Online research suggested my intermittent issue with the cold water fill being just a trickle and then causing an error was likely due to one or both of those two parts failing. Since they are in the same spot it was suggested (and I agree) that it is best to replace both at the same time. The hardest and most frustrating part was getting the bracket back on with the two bottom tabs being in place. It took multiple attempts, some choice words, a small cut from the sharp metal edges to the thing in place.