If your fridge still has not lit, run all your propane appliances: water heater, stove, oven and rear BBQ hookup if you have it, for 10-15 minutes and then switch your fridge to propane and check it every 10 minutes (for about a half hour) until it stays running on propane. You'll only have to do this the first time as there is probably still air in the lines.
New camper looks great, happy camping.
2015 Eagle 284BHBE
2010 Ford F150 XLT 5.4 Maxtow, Coverking Seat Covers, Putco LED interiors, Kenwood DNX571TR GPS, Kicker Powerstage, Weathertech Floor Mats and Window Vents, Line-X, Firestone Airbags, Michelin LTX-MS2, LivewireTS 5 Star tuned, Propride 3P