I talked to the help line on the phone as I was troubleshooting in the boat. Checked power in.. Ok, checked connections, all good and unchanged. Checked internal fuses (2) both good. So how does it blow and fuses still in tact?
Regardless it will not power up. Next they said disconnect everything for 2 hours and it may reset. Did not work.
Then i told help desk i had charged batteries ( 1 month old) that day with high powered alternator set up on the way out to the gulf and again on the way in.
He said that probably cooked the charger. I then could order one from him using the old serial number and receive a discount. His price $330. So,i checked the net and found it for $269. Ordered another xantrex 40 amp, 3 phase charger. I Bought it in 2008 so guess it did not owe me much. It will be an easy switch out as it is same set up.