Last summer I had my Progressive SSP50 plugged into the 50 amp plug and my motor home plugged into that. I experienced a brown out in the middle of the night. This happened several times finally ending with no power coming into the motor home. The next morning I was able to see the 50 amp plug was fried, the surge protector was fried, and the prongs on my cord showed discoloration. Luckily, nothing inside seemed to have been harmed. All systems worked on batteries and when I switched to the 30 amp plug everything worked as usual. We left the park, with no replacement or even much of an apology and only discovered several days later that our Splendide Combo was dead. It has it's own built in surge protector and that was fried as well as the motherboard. This was almost a $1000 lesson adding a new plug, new surge protector, and WD repair. I replaced the surge protector immediately. Oddly enough, this had been a Christmas present and I had just started using it on a regular basis. 6 years without one with no problems, 6 months with one and it saved my coach ...go figure.
