Thanks everyone. She did get a frig manual. ( But not a "full camper" manual) . She did call
Parkliner. They said the frigs are hard to
light. Not helpful! We had it running once. Then we stopped to camp and she plugged into electric. When she does that, she needs to open a compartment on the outside of the camper to switch from propane to electric. And of course to switch back again. What made it finally come on again was that we learned we had to hold the gas button down almost a full minute, not the 15seconds that the manual suggested, to get it to
light. And we think there was dust in there so we brushed things off before
doing all the clicking and holding. Once started the frig went down 4 degrees in 30 min. Guess that's pretty good progress...
It's hard learning someone else's systems!