On all the time, never worry about it. It stays in automatic mode; turns on propane when I unplug and turns it off when I plug back in. The Crusader stays plugged in at home. Not sure what all the hoopla is all about, but there are much more riskier things we do with our RVs than run with the refrig on propane like traveling below the speed limit with interstate traffic. More apt to have an issue there before an issue with running the refrig on propane. By the way, has there been any incidents with modern RVs running there refrig on propane exploding at gas stations? Just wondering.
2012 Crusader 320RLT
2011 F250 Lariat 6.7L
2016 (19 Nights Camped/1348 Miles)
2015 (38 Nights Camped/3560 Miles)
2014 (28 Nights Camped/1980 Miles)
2013 (30 Nights Camped/1411 Miles)