I have to assume you have gas flowing thru the system, as the stove and water heater operates?
Open the outside access and put your hand on the gas valve while someone turns it on. You should feel and possibly hear a distinct clunk as the valve opens.
Do you get just one "tick" from the ignition, or more?
Edit: Here is the service manual http://bryantrv.com/docs2/docs/Servi...,%20RM8xxx.pdf
Page 26 describes the ignition operation, startup on gas. There is a 1 amp glass fuse that controls the burner control unit, which operates the gas valve. Actually an easy to understand manual, possibly too simple, but its ok and well illustrated.
Edit: referring to this fridge
as Electrolux in any form or fashion will just serve to confuse people. Many people, probably including some service people, will not understand the relationship of Electrolux and absorption fridges, You will probably get better results, especially on the phone talking to someone simply by calling it what it is, a Dometic.
Not trying to be critical, but not using the correct descriptive term for something is a pet peeve of mine, probably due to my having been an airline mechanic for 31 years, where everything has a proper description and failing to use it can cause great expense on the part of the company.