Yes, every now and then, you need that 50 to 30 amp adapter. The 30 amp being more popular in smaller campgrounds get worn more and sometimes the ground pin unhooks or the other 2 blades get loose. I have a monitor in the camper which sounds an alarm when open ground happens. So far, every time this happens is due to worm 30 amp outlets.
Using the 50 to 30, creates a tight fit at the power post in many cases as it is used less, again in smaller camps. This solves the issue until the park can replace the outlet.
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
Google Custom Search For Sunline Owners Club