Also check your Door Gaskets. Not just that they're clean along with the surface they touch. Make sure nothing's holding a door even the slightest bit ajar. Do the Dollar Bill Test. Close the door on the bill and be sure there's resistance against pulling it out. All the way around.
A few years ago I thought we'd have to replace our Norcold N811. Then I found the doors weren't sealing on the corners up from (freezer) and down from (fridge) the latches. So I tried springing the doors so those corners touched first. That worked for one closing per door. So we developed The Gestures. The upper freezer door corner gets a palm of the hand push every time we close it. The lower fridge door corner gets a knee push.
I did, also, add two little 80mm computer fans on the outside coils about the same time as we figured out the Door Gesture plan.
Noticing you have a Fiver, IF your fridge is in a SLIDE, you MUST have a FAN on the outside. When fridge is not in a slide, its upper vent is through the roof and heat convection is far better than our the side wall. Get the Installation Instructions for your Fridge Make/Model. Make sure it doesn't have dead air space above it, and the ventilation is properly set up.