20
TROUBLESHOOTING GUIDE
PROBLEM CAUSES SOLUTIONS
The controller is continuously
watering
Too many start times have been
programmed
Only one start time is necessary to activate a program
(refer to "Setting the Program Start Time(s)" on page 11)
There is no display Check batteries or AC power Correct any errors
Display reads “O,
”
The rain sensor is interrupting
irrigation or the sensor jumper has
been removed
Slide the rain sensor bypass switch to the BYPASS position
to bypass the rain sensor circuit, or reinstall the jumper
Rain sensor will not shut o the
system
Defective rain sensor
Jumper was not removed when sensor
was installed
Stations have been programmed to
override the sensor
Verify operation of rain sensor and proper wiring
Remove jumper from the sensor terminals
Reprogram the sensor override to enable the sensor (refer
to "Programmable Sensor Override" on page 16)
Frozen display, or showing
incorrect information
Power surge Reset the controller (refer to "Clearing the Controller's
Memory/Resetting the Controller" on page 17)
Display shows a station is
running but the
and icons
are ashing
The sensor is interrupting irrigation,
however the station has been
programmed to override the sensor
Check the Programmable Sensor Override status
(refer to "Programmable Sensor Override" on page 16)
Automatic irrigation does not
start at the start time and
controller is not in the System
O mode
AM/PM of time of day not set correctly
AM/PM of start time not set correctly
Start Time is disabled (set for O)
Batteries are dead
Controller is not receiving AC power
(if using a transformer)
Correct AM/PM of time of day
Correct AM/PM of start time
Rrefer to "Setting the Program Start Time(s)" on page 11
Replace batteries
Check AC power connections
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