Rain Bird ESP-LXIVM, Troubleshooting Manual, Page: 31 / 38

31
ESP-LXIVM Controller Troubleshooting Guide
Table of
Contents
Category Issue Potential Cause Solution
Controller
Alarms
Controller alarm;
Invalid Module
Config.
A non-compatible
module has been
inserted into one
of the controller
module slots.
Remove any recently added modules, one at a
time, until the alarm condition clears.
• ESP-LXME/-LXMEF Controller 4-, 8-, &
12-Station Modules, FSM Flow Smart
Modules, M50 and SM75 Modules are not
compatible.
Controller alarm;
No PGM will Auto
Run.
Incomplete
programming.
Turn dial to Diagnostics / Confirm Programs
/ Program Summary. Missing programming
parameters are identified by an N. For
programs to automatically run you need to
program Start Days, Start Times, and Station
Run Times.
Controller
Alarm; No
Power – Irrigation
Functions are
Disabled.
No primary power
to the controller
transformer
Check the power input to the controller
transformer. The display is being powered by
the 9v backup battery.
Front panel
ribbon cable is
disconnected
Check both ends of the ribbon cable to make
sure it is firmly connected to the backplane
and front panel.
2-Wire Path
Issues
Communication
with 2-wire
devices is
intermittent.
2-wire cable
or splices are
leaking to ground
or between
conductors.
Turn dial to Diagnostics / Control Output. The
controller voltage output and 2-wire path
milliamp draw will be displayed.
• If there are no issues you will see Current
Limit OK, Current Overload OK.
• If the 2-wire cable leaks are drawing a high
amount of current you will see Current
Limit Not OK, Current Overload OK. Use the
troubleshooting tips above to find and fix
the 2-wire cable/splice issues.
• If the 2-wire cable leaks are drawing a high
amount of current you will see Current
Limit Not OK, Current Overload Not OK.
The controller will have automatically
switched to Fault Finding Mode. Use the
troubleshooting tips above to find and fix
the 2-wire cable/splice issues.
Controller loses
connection to
2-wire devices
after a heavy
irrigation or
rainfall event.
Communication
signal and power
leaks to ground.
• Single-jacketed cable and/or incorrect
wires splices were used. When incorrect
cable/splices become submerged it can
create leakage to ground. Double- jacketed
14-2UF Maxi 2-Wire Cable and WC20 Splice
Kits are required.