did you guys look at your manual to trouble shoot your refer? before replacing it try and see if the problem isn't minor. (they can take upto a day to cool down)
if you need any copies of the manual(s) i have all of my original documents.
the "1000" denotes the trim level. if yours is one, it will be on the outside of the trailer right next to the excella.
i would love to see some pic's of your trailer. i have two photos posted in the photo area under john hd.
let me know if you need any advice on your trailer, i have had the pleasure of fixing a number of things over the years.
john