Gas Fridge problems?

I had problems with my previous Swift Caravan (from new) and in June I swapped to a Swift Finesse.  The first time I went away for a few days was on a basic facilities CL no EHU.  Then I set sail for a long tour of Scotland in September.  Fridge failed to function on Gas.  I got a mobile man out and he got the fridge functioning again.  All was fine until the next move.  So I had to forego the cheaper non EHU sites total loss around £250 so far.  Finally took it back to the Dealership this week.  They clearly thought they could sort it there and then as I wasn't taken to the service area.  I told the chap that I would scream if he sorted it out on the forecourt!  I had tried it myself AGAIN before I left home and even with lighting the gas rings first there was no sign of the fridge working on gas.  Anyway I nipped away to the ladies for a few minutes to leave him to it and when I got back he said "I do hope you aren't going to scream....."  No I said because it didn't "just work" you did something.  He had rest the fridge but the WHY astounded me.  Did I employ the AUTO mode when turning on the fridge - um Yes.  Why wouldn't you turn on Auto?  Apparently the reason why not is that the fridge requires a very small amount of gas to ignite the fridge and if there isn't sufficient gas supply the fridge switches off the GAS facility.  I am dumfounded that there IS an AUTO facility if it doesn't meet the required pressure of gas.  I also didn't know that there is a 25 or is it 15 minute lag between a failed attempt at lighting the fridge with gas and the next attempt.  I would like to be ehu free but the last 5 years at least have proved to me that the fridge is a problem.  

What I can say with confidence is that the alternative is a pack (or two) of Party ice from a supermarket BUT that requires to have somewhere safe to melt into.  i.e the salad boxes or something!  

If anyone else has had this problem I would be interested.  I think I now know how to "reset" the fridge but I still don't understand why there is an AUTO function if that is inadvisable!