New Holland BR740 won’t read bale size

Good morning, we completed some extensive maintenance in the off season. (Welded sledge roller frames, replaced all the belts, fixed a few other issues we didn’t know we had.) Anyway yesterday was it’s first day in operation and it would not read the bale size. I used manual to program sensor thinking maybe it got bumped. Bale command manual says go to step 12 and set it to read 28-32. Went I went to adjust the sensor on the right side of the baler it would only read “1”. I took it off and turned the potentiometer manually and it would read 1 then 2 then stop at 3 went turned all the way. When I unplug the sensor it pegs out at 290 something. Swapped potentiometers just in case no joy. Thinking maybe wire issue gonna check that today. Fortunately I was able to keep baling I just had to make them a little small as I was guessing on size. I appreciate any direction anyone can provide. Thank you.

New Holland BR740 won’t read bale size