Dometic Refrig keeps cutting out.

dbontherun wrote:
When my Dometic refrig is on LP gas it cycles three times and then shuts off. What might be the problem?

Not sure completely about what happens, but it sounds like what you are saying is that it TRIES to start 3 times then shuts off. That means after 3 tries it did not detect a flame, and then the default is to shut off until power is cycled. If so, it's likely either
a) you don't have gas
b) you don't have a spark
c) something is wrong with the control board
d) something is wrong with the flame detection and it doesn't detect a flame is present.