Thanks for something else to do Bruce ! ....after looking at your photos, I noticed that the layout of the area behind the upper grille was different. First thought was__no wonder its not cooling, look at how high the baffle/panel goes up...the top grille is almost covered up?!?! Mine is wide open.
After a review of the install manual for my refrig unit, mine wasn't installed correctly and have two baffles missing. The one to direct the air up and past the upper coils and the other to deflect that air out to the grille openings. Still seems to work but wonder if it could be better.
Would guess that your fan is located in the same general area as mine but can see why you can't reach it now. Is the baffle covering the opening removable or is it part of the wall? Bet if its removable, you can reach the fan without removing the refrig.
Living here in Florida and its temps in the summer...will have to add installing the two baffles as a project and upgrade to help with the cooling. Should be able to do it without removing the refrig. At the cost of the fan...will replace it at the same time and maybe keep it with all the other 'stuff' I don't want to part with yet.
In a prior post I indicated the fan as .03 amps ___ should have been .3 amps.