My stackable washer and dryer quit working. Checked all accessable outlets, breakers and connections. All else works fine. RB service said to disconnect 50amp power cord, wind back and then reconnect to pedestal. Said they have noticed before (others have had other single electrical device lose power) and is not a bad connection anywhere? However after doing this procedure 3 times, the power to washer and dryer only stayed on about 2 minutes each time.
Any suggestions?

Sure sounds like a loose connection somewhere, I do believe that the powercord is connected to the Tiffin built switch box that detects outside or generator input, I would check there first. Did you check the plug at the source as you may have only had one leg of the 50 amp live and that could cause the same problem.