TROUBLEsHOOTInG GUIDE
PROBLEM CAUSES SOLUTIONS
The controller is continuously watering. Too manystarttimeshave been programmed.
Only one start time isnecessaryto activate aprogram.
(refer to Setting WateringStart Timeson page7).
There is no display. Check AC power wiring. Correct any errors.
The display reads“No AC
”
.
There is no AC power present (the controller
is notreceivingany power).
Check to see if thetransformer is properly installed.
Display reads
“
Off, ”.
The rain sensor is interrupting irrigation or the
sensorjumper hasbeenremoved.
Slide the rain sensorbypass switchto theBYPASS positionto
bypass the rain sensor circuit, orreinstallthe jumper.
Rain sensor will not shut off the system. Defectiverain sensor.
Jumper was notremovedwhen sensor
was installed.
Stations havebeen programmed to override
the sensor.
Verifyoperationof rain sensor and proper wiring
Remove jumper fromthe sensor
terminals.
Reprogram the sensoroverride toenable the sensor
(see page 10).
Frozen display, or showing incorrect
information.
Power surge.
Reset thecontroller per page 11
“
Clearing Controller Memory/
Resetting theController
”
.
Display shows
“
ERR
”
with anumber (1-8). Short invalvewiring circuit, or faulty solenoid
on the stationnumber indicated.
Checkwire circuit orsolenoid for the valve number indicated.
Repair short orreplace solenoid. Pressanybuttonto clear the
“
ERR
”
from the display.
Display shows “P ERR
”
.
Faultypumprelayor master
valve wiring.
Incompatibleor defective relayor solenoid.
Under sized wire tothe pumprelay or
master valve.
Checkwiring torelay or master valve solenoid. Press anybutton
to clear the“PERR
”
from the display.
Check electrical specification forthe pumprelay. Do not exceed
controller's electricalrating.Replace if defective.
Replacewire with larger gauge wire.