Why does my controller say P:On or P:Off

The RD600/900/1200-R RainDial Timers may display P:On or P:Off on the LCD.

This is one of the features in the new -R series of Irritrol sprinkler timers.  It’s described in the manual in more detail, but basically does this.  The Sprinkler timer has a pump control signal that normally turns on when a particular valve is turned on.  Most people I know don’t have a pump to boost pressure in their irrigation system so it’s not a common feature for the general urban irrigation system.   If for some reason you did not want the pump to come on when a particular valve was on, you can turn it off by setting the main switch to the Set-Programs position, the dial to the valve you want to change the pump settings for, and then press the Manual-On button.  It will toggle between P:On and P:Off each time you press Manual – On.

If you don’t have a pump, it doesn’t matter whether you turn this feature on or off.  If you do have a pump, you’ll know what to do.

If you’re not expecting this to appear on the LCD, you probably need to slide the switch to the “run” position instead of “set programs.

I hope that helps,
The RainDialDoctor

5 thoughts on “Why does my controller say P:On or P:Off

  1. Have RD-600-R. Seem to have had this problem forever. System will not turn on manually from mid- to late morning on; yet it will early morning. I’d this some kind of circuit board logic of a flaw? My workaround is to bypass the controller by turning the valves on.

    Also did the blank screen battery replacement procedure recently. When that happens, does it reprogram the system?

    Thanks

    • Hi Jerry,

      That sounds like the type of problem we typically see – you can send it in for repair. I will send you an email with repair details. Thank you,

      Meghan – RainDial Doctor in Training

  2. Brian:

    You had looked at my RD 600 on 7/22/15 but found nothing wrong with it. I have your address & hence I would like it so that I can UPS it to you.

    Manually adding time to any station the unit works watering the station programmed. The display is working.

    Have a happy 4th July.

    Dhiren J. Mody

    • Hi Dhiren,

      Thanks for thinking of us again.

      My address is here.

      I hope you had a happy 4th of july as well!
      Brian

  3. Brian:

    You had looked at my RD 600 on 7/22/15 but found nothing wrong with it. I have lost your address & hence I would like it so that I can UPS it to you.

    Manually adding time to any station the unit works watering the station programmed. The display is working.

    Have a happy 4th July.

    Dhiren J. Mody

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