dper0413-
There is a Monaco fuse, and then there are fuses on the refrigerator circuit board, located on the back of the refrigerator.
According to your owner's manual (link
here, page 167), the Monaco fuse should be on the Front Distribution Panel (FDP). The fuse number is 67 and the connector it is near is C412. That connector is in the lower-left of the FDP, directly above the house battery disconnect solenoid (controlled by the "salesman switch" at the coach door). The FDP itself is inside the left-front exterior storage bay.
If you have 12V at the refrigerator circuit board, but not to the refrigerator controls, then the problem is on the circuit board. There are one or two fuses there.