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RainPro HDC-4 - User Manual

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Questions and Answers

  • D
    Denise WestAug 4, 2025
    Why is my RainPro HDC-4 irrigating at the incorrect start time?
    • P
      Pamela SmithAug 4, 2025
      If your RainPro Controller is irrigating at the incorrect start time, you should verify the programming, including the day, time, AM/PM settings, start times, and active day settings.
  • G
    Gloria ClarkAug 11, 2025
    What to do if my RainPro HDC-4 is operating properly, but the valve or valves do not activate?
    • S
      Scott GoldenAug 11, 2025
      If the RainPro Controller is operating correctly, but the valve or valves do not activate, check both the station and common wiring and connections between the controller and the valves. Also, check for 24 VAC at the valve solenoid.
  • C
    Christina SuttonAug 18, 2025
    How to troubleshoot no display information on RainPro HDC-4?
    • S
      Steven KhanAug 18, 2025
      If there is no display information on your RainPro Controller, you should check the AC power supply. Ensure that the power at the controller is between 24-26 VAC. Check the AC wiring and the power at the wall plug.
  • S
    Steven NelsonAug 26, 2025
    What to do if my RainPro Controller display reads “Sensor off”?
    • D
      Desiree TaylorAug 27, 2025
      If the display on your RainPro Controller reads “Sensor off”, slide the Rain Sensor switch to the “off” position. Alternatively, install a sensor jumper wire on the terminal strip, connecting the “RS” and “RS” terminals.

Summary

Mounting the HDC Controller

Connecting Valve Wires to Controller

Connecting Power Source

Master Valve;Pump Start Wiring

Sensor Wiring

Electrical and Battery Power

Loss of Power

Indicates when electrical power to the timer is interrupted.

Low Battery

Indicates when battery life is below recommended levels.

Programming the Controller

Program Start Times

Time of day a complete programmed irrigation cycle will start.

Station Run Times

Length of time each station/valve will irrigate.

Calendar;Schedule

Days of week/calendar for desired irrigation.

Input the Current Date and Time

Setting Program Start Times

Establishing Individual Station Run Times

Setting the Calendar

Dial Positions and Functions

RUN

Enters programmed data into the controller for automatic operation.

RAIN;OFF

Stops all irrigation output; rotate back to RUN for normal operation.

Manual Station

Manual Program

Seasonal Adjust

Re-setting or Erasing Controller Memory

Trouble Shooting Guide

Icons on the THC Display

RainPro HDC-4 Specifications

General IconGeneral
BrandRainPro
ModelHDC-4
CategoryController
LanguageEnglish