Mikey:
Did the refrig light and start cooling on gas? Are the status lights on on the front panel? This would imply that you have 12 volts DC to the refrig. The refrig NEEDS 12 volts DC for the switching/gas valving & gas lighting functions to happen via the refrig logic board.
Do you have an outlet tester or DVM to test the refrig AC outlet?
I believe there are fuses either on the board or inline in wires to the board. You might also check all breaker box breakers and fuses.
Good luck!!!
P.S. Your heaters for the refrig won't know it is out of level. Rather, the internal channels of the cooling unit will clog up. As a rule of thumb, if the trailer is so unlevel that it is uncomfortable to walk in, you are courting PERMANENT IRREVERSABLE DAMAGE to the cooling unit. This will take about $1k to fix and a week's downtime.