My first question is, do you hear the hush of air/propane when you turn the stove switch on? Expect that every time you pull it out of storage or have the tanks refilled, it's going to have a little air in the lines and you have to flush that out before it will ignite like normal.
Use extreme caution if you decide to try this...
What I've done in the past is turn on two stove burners and held two separate long armed fire starters to each of them. Once the first one ignites, the second one is usually not far behind. Then light the third one. Once they are all lit, you can consider the "purging" of air out of those lines complete and they should fire off like normal. Now, your frig propane and furnace should fire off on the first try unless the line for those is split off of the main line, in which case, it make take a couple of tries before they both will fire off and stay lit also.
NOTE: My TT has a short run that the lp lines make, so when I purge the stove lines, the others are purged as well, but longer TT's could be different and require a little more patience.
Where we've been:
2000 Rockwood Roo M-18 Hybrid
2006 Dodge Ram 2500 Auto 5.9 Diesel
Gone but not forgotten -1986 Rockwood 1003 PUP