Easy way to determine your amp draw and possible failure when adapting DOWN to 30 amp or even IF you have a 30 amp only RV. Look at the 2 Flat Spades on the 30 amp cord end or 50 to 30 adapter end. IF THE PRONGS ARE DISCOLORED OR BLACK AND BURNED, you are constantly overloading the service. That 30 amp adapter or end is what is heating up. I rarely find any of the 3 -50 amp spades pitted or discolored, just the 30 amp. This is why it is mandatory that you replace the adapter or replace the 30 amp cord end male plug when they get this type damage. Doug