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Scroll down to see the many DIY troubleshooting topics below
Please go through the following DIY list; if you don’t see what you are looking for, you can look through the Q&A and/or ask a new question about your sprinkler timer.
This do-it-yourself page will help you troubleshoot and diagnose problems with the Irritrol Rain Dial RD-600 and other irrigation systems. We don’t want you to send in a sprinkler timer in for repair if it doesn’t need it. Click the links below to navigate the troubleshooting sections. If you’re asking “How do I …”, keep reading.
For RainDial RD-600, 900, 1200 PROGRAMMING HELP and manuals, click here
Choose the Rain Dial RD600 series problem DIY troubleshooting topic below.
- Timer Behavior problems
- Display error messages
- How Do I … and trouble shooting topics
RD-600/900/1200 Timer – Behavior Problems:
- Rain Dial Sprinkler/irrigation valves chatter or buzz or water pressure seems low.
- Valves do not come on when they’re supposed to
- Valves stuck on, won’t turn off or more than one is on.
- Time is frozen or cannot change the time
- The case door won’t open or you lost your key
- The case door breaks off or comes apart
Display Error Messages for the Irritrol RD600, RD900, RD1200 Irrigation Timers:
- Display shows OFF or blinks when turning on a valve manually
- Display is Blank.
- Display says FUS or FU5 and a number
- Display shows 5En or SEn
- Display shows OF1 or OF… some number
- Display shows P:On or P:Off
- Display is blinking – see above
- Display shows “—-“ for days of the week – refers to skip days
- Rain Dial Plus:displays “Opn” or “Open“
Programming Information for Irritrol RD600, RD900, RD1200 Irrigation Timers:
- Programming tutorial for RD-600/900/1200
- Programming worksheet for RD600/900/1200
- Understanding the Skip Days Feature
DIY troubleshooting “How do I …” sprinkler timer related topics
- How to reset the RainDial controller and set it to factory defaults
- How do I water while my timer is being repaired (Manually watering without using a timer)
- How to check the fuse (also see FUS topic above)
- How to test the transformer to know if the transformer is bad
- How to test if the valves or solenoids are bad.
- Typical Sprinkler Valve Wiring Diagram
- Rain Sensor information for Irritrol RD600 and other timers
Here is a video showing common symptoms that indicate when a Rain Dial Controller needs to be repaired.
If this information wasn’t enough to resolve the issue, we can help:
Send Rain Dial Timers in for repair?