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Please look at the DIY Troubleshooting section before posting; answers to most questions can be found there.
You can also reply to other people’s questions if you like. (Thanks for helping)
Please try to include the following with your question, list:
1) the date code (located under the battery),
2) the model number shown on the face of the controller (usually below and to the left of the dial, e.g., RD-600 or RD-600-R).
3) Color (mostly Gray or Blue) based on the example rainDials shown at the top of the page.
How do you change the Control Module Ribbon Cable on an Irritrol RD-1200-R controller?
Date code: 03-18-25
Color: Blue
Unfortunately, there isn’t really an easy way to replace the ribbon cable. I would suggest sending an in for repair. I can take care of the cable back terminal board and also refurbish other parts that often fail overtime. That way you’ll know everything is good to go for a long time.
See the menu above for information on how to get it repaired.
Hi Team,
I have a RD600-R (06-22-17). My issue is I have 2 stations (4 & 5) that go on at the same time as opposed to in sequence thus impacting the water pressure. Simple programming involved, only one cycle (C) running at one time. I tried to the system resets (both old & new). No change. I’m happy to purchase a new controller from you but I’m concerned about a rare issue that you mentioned in the troubleshooting section. A faulty diaphragm with one of the valves? How do I diagnosis which valve is bad? If I buy a new controller I could end up with the same problem. Thanks.
Hi Jerry,
I would disconnect the wire for one of the valves, then run through your sequence and see if it still turns on without the wire attached. If so, then it’s a valve issue that’s responding to the change in pressure instead of the electrical stimulus. If that doesn’t work, try the other wire and see what you get. Hopefully that will narrow down the issue.
Let me know how it goes, and if this is helpful, please leave us a donation. Thanks.
Good morning,
Owner of a irratrol 600 d that’s not cycling through all the zones ( showing fus error 1-5) Was reaching out to see if you’re still operating.
Thanks,
Evant
Hi Evant,
You’ll find everything you need to know about FUS on the DIY Troubleshooting page. If you don’t, let me know your specific question and we’lll go from there. Regards, Brian
p.s., if it’s helpful, please leave us a donation, if it’s not, let me know where it fell short.
Regards,
Brian
Hi. The 24vac coil in my contactor to turn on the bore pump only has 5.8ohms resistance. I believe it is making the controller go to fault. R1200r. Is this likely and if so, what can I do to rectify this?
Hi Craig,
I sent you an email with a lot of information on that; but It’s likely a problem with the bore pump relay/contacor; replace it and it’ll be taken care of.
Regards,
Brian
Hi I have a irritrol life 4 channel programmer I cannot get to show the day if the week only the date help please
Hi Kevin, you must have it set in skip days mode. Just set the dial to the skip days position and hit the – until you get down to zero or off. Then the days of the week will show up as you expect.
If this is helpful, please leave us a donation 🙂
The “manual” button is not working on my RD-900-R.
Hi Scott,
I’m happy to help with that Irritrol RD problem; just send it on in for repair; I’ll take care of it and refurbish the whole thing so it’ll be good to go for a very long time. See the RD600 repair details in the menu above ‘how to get it repaired’
Regards,
Brian
Hello Team, I do have KD6 unit and its been working very good. But today I didn’t see any display (its a blank). And then I unplugged the power supply and put it back, but still not working. I also checked my fuse which tied to garage and sprinkler controller. So, I am seeking help to see what can be done to restore it. Thanks
Hi Ramana,
Can you check to see if you have 24VAC? You can get a multimeter from harbor freight for around $8 to check. Also check here https://raindialdoctor.com/sprinklers-dont-come-on-when-they-should/ and look at item C
Brief power outage caused reset even though I have battery backup. All days were set to ‘one’. Bad battery or something else?
PS I’ve diagnosed a bad solenoid using your troubleshooting guide. Thanks for that.
PPS You repaired my timer almost 2 years ago and it’s still going strong!
Hi Gary, I thought I replied earlier, but I don’t see it now.
Yes, it should maintain your programming through a power outage as the battery is good. You might check the battery and then test this by turning the power off to the timer. The display should still show the time in the program should be maintained. If it doesn’t, let me know and we’ll figure out what to do. Perhaps the battery connections have failed or something like that.
Let me know what you find out. I’m glad your time has been working so well for you after all these years. Regards, Brian.
Grey
RD-600-ext
Today setting is showing SU and it will not change days when push + or -.
What is way to change
Double check that you have the bottom center switch in the middle position which says set programs.
That should allow you to change the day of the week by pressing the + and -.
You might try moving the switch back-and-forth a few times and make sure that it’s seated in the middle properly.
Let me know how it goes
Brian
First, my RD600-EXT-R has been malfunctioning for a few months, going off program and watering for long stretches outside the program. Sometimes the unit displayed the wrong time. A few days ago, I tested the backup battery and found it was bad and replaced it. The unit reprogramed ok. But this morning when I checked the unit (we are expecting unusual rain) the display was blank. I followed the instructions for resetting the older models, once and the instructions for the newer models twice. The display is still blank although it may be lit.
As an additional complication, I ran over the fuse with my car, The glass is gone but the fuse still fits in the brackets and the filament is intact. Let me know if I need to replace the fuse before I can proceed. Pictures are available
Hi Richard, I also got your email and we’ve kind of closed out this conversation that way. If you have any other issues, just let me know.
I’m glad We were able to get it all repaired and working like new again.
Brian