Troubleshooting
Symptom Possible Cause Suggestion
No display
Flat battery or
no mains power or
fuse blown
Install a charged battery. If the display
still doesn’t work, then check the
transformer or the main power supply.
If main power supply is working, check
and replace the fuse if necessary
Zone not working
Faulty solenoid coil
or broken cable
Swap faulty zone wire on controller terminal
block with known working zone wire. If
the faulty valve still does not work on
the known working connection then the
solenoid coil is faulty. The panel may need
to be repaired or the cable may be broken
Fuse blows
Incorrect wiring or
bad wiring joint
Check wiring and joints for a short circuit
No automatic
start
Incorrect
programming
or blown fuse
If unit works manually check settings.
Check fuse and field wiring
System watering
at random
Too many start
times entered
Check number of start times entered
and when they are scheduled to
water. Reset the unit if necessary
Multiple zones
running at once
Looping program
active or faulty
driver triac
Check if looping program is active and in
multi-zone mode. Check wiring and swap
faulty wires on terminal block with known
working zones. If same outputs are still
locked on, contact Customer Service
Pump start
chattering
Faulty relay or
pump contactor
Electrician to check voltage
on relay or contactor
Display cracked
or missing
segments
Display
damaged during
transportation
Contact Customer Service for support
Rain Sensor input
not working
RAIN SENSOR
switch is OFF or
faulty wiring
Ensure RAIN SENSOR switch is ON
Test all wiring and ensure Rain
Sensor is a normally closed type
Check programming to ensure
Rain Sensor is enabled
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