Hi and welcome to FixYa, I am Kelly
Operators manual:
http://www.gas-refrigerators.com/pdf/RM2193-manual.pdf
Parts manual:
http://www.scamptrailers.com/Portals/0/Dometic_Refrig_RM2193_PartsList.pdf
If you look at the last page of the parts list (page 10) it is showing a thermostat across the Black and white wires.
There is not a fuse that I can see. The fuse has to be external to the unit. You should be able to read continuity (resistance) of the AC heating element at the power cord with the AC switch ON.
AC Power source must be removed to perform resistance checks.
No continuity there are 2 possibile failures (Other than wiring)
1. AC heating element
2. Thermostat.
Thanks for choosing FixYa,
Kelly
Testimonial: "very clear answer to my question i determined that the AC heating element was at fault. no connectivity as suggested in the question. "
DC Volts
Wiring
LP Gas
Manual Gas Valve
Solenoid
Orifice
Burner
Thermocouple
Lower circuit Board
Since it does it on both AC and gas, you can toss out the LP Gas, Manual Gas Valve, Orifice and Burner.
Make sure that you have good DC voltage and tight connection to your refrigerator.
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