We used to have a similar problem. Once in a while the fridge would go off when driving, usually in gusty wind conditions. I suspected the flame was getting blown out. The factory control board would not try to re-light, it would just throw the check light and have to be reset.
I replaced the control board with one from Dinosaur because of some other issues we were having, and one of the additional benefits is the Dinosaur board will keep trying to re-light the flame every 30 minutes if it goes out. So if the flame does go out for some unusual reason it will just re-light again.
