Through this website, another tech assisted me in changing out the top sensor. I checked the glass tube on the bottom; it was fine. Until then, there was frost on the freezer back panel and the coils were frozen solid, so I defrosted those. It has been working fine for about a week. Just now, the fridge side is warming - I have it set at the top setting too. Model # XXXXX the side by side is GSH25SGPC SS
The piece I changed out was #240, the piece for which i was sent a link for ordering. For the glass tube, I was directed to loosen both ends slightly, and slightly twist the rather delicate fiber to see if either end was broken. Neither appeared to be so.
I recall looking at it and thinking it reminded me of old steel wool. Does that sound about right for a faulty one? If so, do you have a link for ordering this part and based on this, do you recommend replacing this? Thanks, Tim