The fuse for the DC operation on a Dometic RM 2553 fridge is typically located on the control board, which is accessed by removing the back panel or cover of the refrigerator.
I suggest verifying the refrigerator's thermostat configuration. it might result in the unit shutting down prematurely If it's set too low, Adjust the thermostat to the suitable setting. Moreover, insufficient gas supply can cause the flame to go out. Please examine the gas line for any obstructions and ensure the gas tank isn't empty
The first thing I would do is check the battery voltage when the fridge is running. The trickle charger may not be enough. The voltage should be between 12.7 volts and 13.2 volts. Solar Trickle Chargers are made for trickle charging a battery that has no load. Also, they only charge during sunlight hours and your fridge is running 24 hours.
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