Question
I have a 15 year old Hardie Slim Line controller.. The readout in the window is very broken and weak. Hard to read..Any thoughts. Thanks

Answer
Hey Gary, once the crystals start to go out, there is not much you can do. Hardie was bought by a company called Irri-trol, and so you can no longer get parts. What I would suggest, is to replace the unit with a Irri-trol "Rain Dial" controller. It is easy to program, and will last a long time. Good luck and have a great day.