No display lights........that means NO DC to/on fridge
Backside of fridge is where 12V DC +/- from DC Dist Panel goes to fridge lower circuit board
On the circuit board are 2 fuses
1 is a glass fuse....probably 5A---that is just for the 120V AC circuit/heater elements
1 is an Auto Blade Type fuse....probably 3A...that IS the DC Fuse for ALL fridge controls/lights/functions
Need to test/verify you have 12V DC to fridge
Then test/verify you have DC to/thru that 3A fuse
More then likely problem is with DC to fridge...either at Main DC Dist Panel FUSE or on backside of fridge ...thermal fuse/recall circuit etc
(Hard to guess cause you didn't post BRAND/MODEL of fridge)!!!
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31