How Do You Replace A Lawn Sprinkler Timer?
• Determine if you really need to replace your timer. If the timer has no power it might be circuit board failure (go ahead and replace the timer) or it might simply be a transformer failure (just replace the transformer). However, it might be a blown fuse due to a short in a field wire or solenoid, and your timer might be fine for a few more years. • Write down the existing program on the old controller. Include in your notes what days to water, what time to start watering, and how long for each station (zone). You can change the program later if you would like. • Unplug the transformer from the wall (flat square plug similar to a cell phone charger) or turn off the power to the controller at the breaker. Do not go any further until you are absolutely certain that there is no electrical power to the controller. If unsure, check the power input wires with a volt meter, or call a licensed electrician. Electrical power can seriously injure or kill you. Once you are certain you have disco
