I returned to install the 3 new thermistors. The next day I returned again to measure the temperatures with the laser thermometer. Had -5F in the freezer and 41F in the FF compartment top shelf, and 36F middle shelf. Inside the crisper drawers it was even colder. At the same time the digital display was reading -6 and 34. The compressor was off at that moment.
There is no food in the unit at present because the home is a vacation rental and the last bunch of tenants have gone. Pulling the evaporator cover off revealed the evaporator was hardly frosted and the upper 1/3 of it was warmer (lasering 30F). However, the ice maker is making plenty of ice and, as long as the cover is on, the panels are lasering -5 or even colder.
What I'm concerned about is when the new tenants arrive and stuff the fridge with their own food, temps will rise inside and they will complain that their goods are thawing/going bad (like the last tenants did).
The FF door is sealing very tightly now that the last tenants have gone. All the hardware is in good condition too.
you have two thermistors out of tolerance... which ones? I think you are over thinking the temp issue.
Freezer and Fresh Food.
a bad thermistor can create those temp issues. If the compressor seems okay, you have no choice but to replace the failed thermistors. A quintessential rule in appliance repair is to fix the obvious problems first. You must replace those thermistors before you can proceed further.
I am confused regarding your diagnosis. Is this the result after you replaced the sensors? If so, did you give it sufficient time with the evap cover in place? Is it a rush to judgment?
Haven't replaced the sensors yet. I don't want my client to throw money away if there is a sealed system leak.When I arrived I took the back cover off and saw this frost pattern. Lasered the frosted area at 0F and unfrosted area at 27F.
The list and suggestions regarding the door issue is lengthy and to say you doubt any of those could be the problem without at first checking them is interesting indeed. Another possible rush in judgment?
I have the tendency to rush. This is something I try to keep under control. But, I found and studied your list before going out on this call. I checked for these things already. I will recheck when I go back.