The Plugs are NOT Ford. So, I will bet the polarity of the plugs are reversed. THAT is why you are destroying the cords. The OUTER silver case is Negative and the inside rear is the positive. IF reversed, it is very easy to gain access on a Precept to reverse the spade terminals on the back of the receptacles. Also, KEEP the bad cords and receipts for them. Jayco will reimburse you thru your Jayco dealer. IF indeed it is reverse polarity. IF you fix it yourself, TAKE PICS of the reversed wiring and then when it is corrected. Doug
