Dometic DMR/DMC not working

[Jim and Aileen]

Getting ready for a trip, tomorrow, and after turning on fridge and checking next day, found it not working, flashing lights at the Temp Set leds. Owners manual says this is error code for no communication from display and power module. I turn it off, then back on, tried with propane and heard the ignitor and then ignition, but soon failed again - within minutes. There is power, lights work and the LED display works. Desperate for a possible fix - any suggestions?

[TURBS]

First time using it this year?

TURBS
08 duramax tuned n modded
2011 32bhok Sabre
2015 camping "9 nights"

[Jim and Aileen]

No, we just got it this year (new) and were out Easter weekend for 3 days and everything was fine