Lynn Alan-Harris of Facebook says:-

Dometic fridge ignition
I’m sure lots of you are aware of this but just in case I thought I would post it.
My fridge would not light on gas.
I phoned Automotive Leisure and they tell me the ignition button comes out! Press it in and give it a quarter turn anti-clockwise and it pops out (had to use a knife on the side of the button to help turn it). Once out you will find a AAA battery inside. I replaced it and the ignition worked fine. I never knew there was a battery in it.

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