Nelson ez pro, Instruction Manual

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TROUBLESHOOTING/SERVICE
SYMPTOM POSSIBLE CAUSE SOLUTION
No output to zone, pump, master • AC disconnected • check AC source, if AC is not detected
valve or no AC indicator lit by the controller, the no AC indicator
will be lit
no AC and blank display • no battery or dead battery • replace battery and press reset
LCD is blank • no AC and no battery • install battery to regain use of display,
check AC to ensure output to field
• ribbon cable is disconnected • ensure ribbon cable between the front
panel and controller board is
connected at both ends
“M-X” appears on the LCD when • MODE dial is in program position • position the MODE dial in the AUTO
trying to run a zone manually position to run a zone manually
“C-X” appears on the LCD when • MODE dial is in program position • position the MODE dial in the AUTO
trying to CYCLE a program position to cycle a program
“S-X” appears on the LCD when • MODE dial is in program position • position the MODE dial at the AUTO
trying to run a 3 MINUTE TEST position to run the 3 Minute Test
procedure
The controller won’t run a • No programs on A, B, or C • enter a program with run times for the
3 MINUTE TEST zones you need. The 3 MINUTE TEST
only runs those zones with programmed
run times on them
P with a zone number appears • Wires not connected or short in • Check field wiring, check solenoid,
on LCD wires or solenoid replace solenoid
• More than 2 solenoids connected to a zone
ALL 24HR flashing on LCD • Greater than 24 hours of run time • Check zone run times and WATER
programmed BUDGET percentage
Controller is not watering and RAIN • RAIN DELAY is programmed into EZ PRO • Turn large dial to RAIN DELAY position
DELAY arrow appears on LCD and Mode dial to Program, check
number of days on LCD.
Adjust as desired
RADIO CONNECT symbol appears • Controller is radio connected to an EZ • Turning any dial will disconnect
on LCD Command Programmer
Rain Sensor symbol on • Rain sensor is activated or if no rain • Check to see if jumper is installed if
sensor installed, the jumper is missing there is no rain sensor
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