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Hello! Thank you for posting a question under our Irritrol RD600-INT-R - Rain Dial 6-Station Indoor Controller. In response to your inquiry, is your controller a standard RD600-INT blue face? If so, an OPEN code means essentially the same as a FUS code in the user guide of the newer RD600-INT-R series. It’s an electrically related failure with one of the stations outside as noted on page 28 of this User Guide. You might need to check the wiring and splices for short circuit or replace a defective solenoid. Hope this helps. Should you have further questions, please let us know. If you need assistance in creating an efficient irrigation system for your lawn and garden, PlumbersStock is offering that for FREE! Simply visit our Sprinkler Design Center to get started.

Hi! Thank you for asking about the Irritrol RD600-INT-R controller. We are sorry to hear that you are having difficulties with your unit. We highly recommend you call the manufacturer at 1-800-634-8873, M-F, 7:30 AM-2:30 PM PST while you are in front of the unit. To set the start time, place the function switch in the Set Programs position and select program A, B, or C. Then, turn the Dial to select Start Time 1 (2 or 3) and press the (+) or (-) button to set the time. Repeat the steps for additional start times and program as needed. When done, return the Dial to the Current Time position, then to the function switch, and lastly to the Run position. We hope this answer helps. To order this terminal controller, click the "Add to Cart'' button and supply the information needed. Thank you for contacting PlumbersStock and for the opportunity to be of service to you! We appreciate your patience and wish you a great day!

Good day! Thank you for posting your question in this RD600-INT-R rain dial. If the time displayed is wrong and it is flashing, a power outage probably happened and your battery failed to provide backup power. When you changed the battery and corrected the time, that solved the problem. For more information about troubleshooting, please take a look at page 35 of thisUser's Guide. Please don't hesitate to contact us if you have further questions about this product. Thank you for visiting PlumbersStock.com. Have a great day!

I dont have any display on the monitor. I checkd the power breaker and is on. Any ideas what to do?

Hey there! Thank you for posting your question about RD600-INT-R. In response to this query, if all stations or valves are chattering loudly when they are on and running then the problem is with the RD600-INT controller. We’re betting that this RD600-INT is more than 12 years old and what’s happening here is the triacs are failing. This traic is a built-in electronic component that sends the 24 VAC voltage to the solenoids for activation. And if you measure the AC voltage when that station is on, you’ll see that the controller is only sending out approximately 11 volts when in essence, it should be sending out anywhere between 20.6 to 29 VAC ( average 24 VAC). In turn, the solenoids are starving to receive the correct voltage so they chatter loudly until the issue is resolved. Now with that said, once the controller is replaced with RD600-INT-R, a newer model, the noise will then go away. Hope this helps! To begin the ordering process, please click the Add to Cart button, enter your zip code and your billing information, and we will take care of the rest. Thank you for trusting PlumbersStock.com! Have a wonderful day!