I run the gas stove for a minute to bring the gas thru from the cylinder, this serves 2 purposes, firstly, it purges the air that might be in the gas lines, and secondly, my stove ignition works thru the same fuse as the fridge ignition, on my Jayco swan, so if the stove wont go neither will the fridge,
My fridge is a dometic unit and may be set up different than your set up