FIXED WTW4850XQ1 Whirlpool Washer always fills to top

[core]

Model Number

WTW4850XQ1

Brand

Whirlpool

Age

6-10 years

My auto load sensing washer has recently started filling to the top row of holes even with just a few items in the tub. If there was a problem with the pressure switch wouldn't it have overflowed? It has never done that to me; it's like it's doing this on purpose. No, I don't open the lid while it's filling.

The pressure tube connects right to the board on this model (ugh), and I've cut a little of the old tube off to get a tighter fit there. No codes appear to be set, and the self-test seemed to work fine but I don't know where it would say if something failed. I was able to blow through the tube from the top and it seem unobstructed.

I haven't yet pulled the cabinet off to inspect the lower end of the tube because I first wanted to know what else I should check when the cabinet's open.

I'm really confused about why it's not overflowing and it's strange that I can't find many search results on this problem from other folks. Surely the load sensing can fail, no? I'm not sure how that even works.

Thanks in advance!

Added model number

 

[core]

I screwed up when reporting the model number; the correct model is WTW4850XQ1.

I must have been looking at the p/n of the manual itself. Unfortunately I don't see a way to edit my original post.

 

[Jake]

I'm attaching your tech data sheet below. Make sure you drain all the water out of the tub first, then On page 2 do--->ACTIVATING THE SERVICE DIAGNOSTIC TEST MODES
Then on Page 3 do--->CALIBRATION MODE: Page 4

If calibrating it does not resolve and and you don't have a clog in the air dome where the pressure switch hose connects to the outer tub of your washer, and your pressure HOSE does NOT have a small pinhole in it, then the control board is faulty and causing this.

Here's the control board for your model:
W10480186 Cntrl-Elec


Jake

 

[core]

FIXED! Recalibration did the trick, thanks Jake! My well pump and septic tank will now be much happier.

I noticed right away that the load sense step was a much slower and deliberate process than before. Like it's supposed to be.

I sure am glad it wasn't the board.

Dunno how things got out of whack. I've had a few unbalanced loads and my hoses have frozen up a few times over the years. Who knows. All is happy now. Thanks again!

 

[Jake]

Excellent core, glad to hear CALIBRATION MODE fixed it.

Thanks for the update!

Jake