Copy following link to help identify timer: Most major brands are linked here, including manuals for each. Some brands such as yardworks, etc, repackage other brands and have no online support or clear resolution for warranty claim. Open link, then add a comment with brand and model and voltage so expert can access same manual. Replace battery. Check if unit is getting power. Check if outlet has correct polarity. Are some basic troubleshoot steps.
Most timers have 1 year limited warranty, and timer that came with used house may no longer be functioning. Or the sprinkler hear has gone bad. For replacement, I think Intermatic mechanical sprinkler timers are better value than digital timers, since the mechanicals have repair motors and trippers and can last 25 years. Add a comment for more information on timers.
If you need further help, I’m available over the phone at May 22, 2013.
Sunvic Sp100 User Manual
Books.google.co.th - This unique A-Z guide to central heating wiring systems provides a comprehensive reference manual for hundreds of items of heating and control equipment, making it an indispensable handbook for electricians and installers across the country. The book provides comprehensive coverage of wiring and technical. Domestic Central Heating Wiring Systems and Controls.