Even when set to propane the refrigerator needs 12 volt electric power to the board in back. Check the fuses in the breaker panel, check the glass fuses on the board in the back of the refrigerator. With a meter check at the batteries to see what your battery voltage is. Then check at the refrigerator to see if you are getting the same voltage there.
get a helper. Turn the refrigerator off and go stand outside by the refrigerator access door. Have the helper turn the refrigerator on to gas. Listen intently for about 30 seconds and describe what if any noises you hear?
Look inside the refrigerator main compartment for a make and model. With that information we can give some more focused suggestions.
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2001 Suburban 4x4. 6.0L, 4.10 3/4 ton **** 2005 Jayco Jay Flight 27BH **** 1986 Coleman Columbia Popup