Hi guys! Recently I've run into some issues with my Whirlpool washer; It's giving me the F9E1 code (and occasionally F9E2), which tells me it's a "long drain" issue. I've removed the filter on the suction side of the pump, nothing blocking it, I've removed the drain line from the drum to the pump, no issues there, I've removed the drain line from the pump to my house plumbing, no issues there. The resistance checked out fine with the drain pump, and there's nothing inside the impeller housing. The sensing line from the drum to the pressure switch isn't blocked, and I replaced the pressure switch just a couple days ago. Since the pump seems fine, I decided to go ahead and replace the control board, which I did today, and I'm still getting the same error!

The washer will do everything it's supposed to do until just after the final spin cycle, it locks its' door, and beeps and flashes the F9E2 code. I then unplug the washer for a min, plug it back in, put it in the drain and spin cycle, and it'll pump out the water and spin just fine.

I'm totally lost now, I don't know what else I could check/replace. As I said, the pressure switch is new, the control board is new, and the drain pump seems fine. What else could it be???