There is a ball valve at the female quick disconnect on your coach, turn the handle in line with the coupler which is the on position. The hose connecting the coach is long and it takes a little bit to purge the air from the line before the grill will light. I usually turn remove the grates, turn on the gas valve at the coach and grill, hold a long lit butane lighter by the burner and wait. If you use just the piezo lighter you will wear out your finger before you get gas! Be careful because if you let the gas build up you will be rewarded with a huge flame and a thump when it finally does light. Again, takes a while to purge the line of air.
Dave & Myra
One day your life will flash before your eyes,
make sure it's worth watching!