RainPro HDC-4 - Trouble Shooting Guide

18
TROUBLE SHOOTING GUIDE
No Display Information Check AC Power
Supply, power at the
controller should be 24-
26 VAC. Check AC
wiring. Check power at
wall plug.
Display reads “Sensor
off”
Slide Rain Sensor
switch to “off” or install
a sensor jumper wire on
terminal strip
connecting “RS” and
“RS” terminals.
Controller is irrigating
at incorrect start time.
Check Programming,
Day, Time, AM-PM
Start Times and Active
Day.
Controller is operating
properly but valve or
valves do not activate.
Check both station and
common wiring and
connections between
controller and valves.
Check for 24 VAC at