Basically this is my reasoning: Where in the world at midnite on a Saturday, in a driving thunderstorm, are you going to find someone who will troubleshoot and repair or furnish you with exactly the replacement you need for the one that just smoked?
Tom, We purchased our Iota 50 amp on Ebay. It is wired so that the shoreline is primary. Anytime the generator is started it automatically switches to generator (after a time delay). When the generator is turned off, it switches back to shoreline. Jack