Troubleshooting/Service - Nelson Turf EZ Pro Jr. 8300 Serie Manuel D'installation Et De Programmation

TROUBLESHOOTING/SERVICE

SYMPTOM
No output to zone, pump, master
valve or no AC indicator lit
No AC and blank display
LCD is blank
"M-X" appears on the LCD when
trying to run a zone manually
"C-X" appears on the LCD when
trying to CYCLE a program
P with a zone number appears
on LCD
ALL 24HR flashing on LCD
Rain Sensor symbol on
Controller not responding to any
dial/key press
No output to a single zone
No output to any zone
POSSIBLE CAUSE
• AC disconnected
• No battery or dead battery
• No AC and no battery
• MODE dial is in program position • Position the MODE dial in the
• MODE dial is in program position • Position the MODE dial in the
• Wires not connected or short in
wires or solenoid
• More than 2 solenoids connected
to a zone
• TVS damaged due to lightning
or improper grounding
• Greater than 24 hours of run time • Check zone run times and
programmed
• Rain sensor is activated or if no
rain sensor installed, the jumper
is missing
• Unit needs reset
• Wiring issues or bad solenoid
• Broken on disconnected common • Check common wire
• RS wired into common wire is
open or disconnected
SOLUTION
• Check AC source, if AC is not
detected by the controller, the no
AC indicator will be lit
• Replace battery and press reset
• Install battery to regain use of
display, check AC to ensure
output to field
AUTO position to run a zone
manually
AUTO position to cycle a program
• Check field wiring, check
solenoid, replace solenoid
• Remove zone wire if Pxxz still
shows when run manually or
automatically, unit needs
service/replacement
% WATER BUDGET
• Check to see if jumper is installed
if there is no rain sensor
• Screwdriver across pads
marked Reset
• Check wiring and/or solenoid
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