Your title states
".......Freezer Works Fridge does not"
But then you state burnt smell and AC not working either.
Freezer cold (10*F or lower) and food compartment NOT cold (not getting down to 40*F) infers obstruction/blockage between evap coils
But with the burnt smell...
Remove lower vent/access cover and thoroughly inspect for burnt wiring/wire insulation on the 12V DC wiring, that includes pulling cover from control module and looking for any scorch/burnt marks
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