Question
I need the door to the controller it got damaged, where could I buy one?

Answer
Hey Vic, Hardie has been bought out by Irri-trol, and the 6100 has not been made for about 10 years or so. The only company that you might try contacting is "Sprinkler World of Arizona" the number is 602-954-9022 and talk to Dale. If anybody can help you on this, they can. Good luck and have a great day.