(All information here is copyrighted by Brian Keller, 2012).
If this troubleshooting information doesn’t help solve the issue and you’d like to have it repaired, please send it to us. We repair all models of RainDial timers.
Here’s the instructions for clearing the Irritrol RD-600 series sprinkler controller “FUS error” or “FU5 error” if it doesn’t go away easily. (It’s usually caused by a shorted solenoid, wiring, or voltage surge, or controller circuit problem…) (Incidentally, FUS stand for Fuse, if you see a 5, it’s really an S)
General overview: The information below can help isolate the problem to being an issue with a valve, but keep in mind that the fuse message is often due to a problem with the system that we can repair. Definitely use the troubleshooting information below to help determine if a valve(s) seems to be the problem. If it’s not, just send it in for repair; we’re happy to help.
- Try clearing the FUS message using the instructions below and see if it comes back. (Set the dial to the Current Time position, press the + or – button.)
- If it comes back, check the fuse if you have one — here’s a link on how.
- If the fuse is good, and the message comes back,
- the suspected “problem valve” number will show up in the top of the LCD screen when the FUS message is displayed.
- Try removing the wire for that valve number and run the schedule again.
- If you have multiple numbers appearing, remove the wire for each of them, clear the message, and run the schedule without the valves connected.
- If the FUS message does not return with the wires disconnected, it’s likely a solenoid or valve wiring problem. Reconnect the valve wires one by one until you find out which one causes the error to appear; this is your suspected bad valve/solenoid.
Once identified, try swapping around the bad valve wires to another terminal and see if the problem “follows” the valve wire. This will help confirm which one is bad. (The valve number shown with the FUS error will follow where you put that valve’s wire), If it follows the valve, check wiring and/or replace the solenoid.
- Solenoids are usually easy to replace, just turn the water off, disconnect the wires, unscrew the solenoid and replace it.
- You can get them from your local landscape supply store (E.g, SprinklerWorld, or other, but probably not HomeDepot or Lowes).
- If you want to pickup the parts first, take a picture of the valve to the store with you.
- If the FUS message returns with the same valve number even if you moved the valve to a new location, it’s unlikely that you’d have two solenoids fail at the same time and it is likely a circuit problem with the controller that we frequently repair; you can contact us here.
TO CLEAR THE FUS OR FUS/5 MESSAGE:
Set the dial to the Current Time position, press the + or – button
For full controller reset:
Older models can be reset by removing the battery and power from the controller – this may reset programming. Always try this method first, then the full factory default reset sequence. All the details can be found in this DIY page: Reset Instructions
Newer models can be completely reset by doing the following. This may remove all your programs:
1. While the controller is power-up, disconnect the
“Ribbon Cable” from the socket on the terminal board.
2. Disconnect the 9 volt battery.
3. Set the “PROGRAM” switch to “B”
4. Set the “MODE” Switch to Set Program (Middle) position between “OFF & RUN”.
5. Hold down the “MANUAL” button while reconnecting the ribbon cable.
6. Reset Current Time.
Important note: If the message keeps coming back and doesn’t appear to be a valve/wiring problem, it’s an indication of another real problem that we repair frequently. Just let us know if we can help, you can reach us by going to the contact page. We usually respond the same or next day.