Rain Bird ESP-LXIVM, Troubleshooting Manual, Page: 29 / 38

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ESP-LXIVM Controller Troubleshooting Guide
Table of
Contents
Controller Diagnostics
Use this table to troubleshoot issues using the built-in diagnostic features
of the ESP-LXIVM controller.
Category Issue Potential Cause Solution
Controller
Alarms
Red alarm
light on the
controller
front panel is
illuminated.
The controller is
reporting an alarm
condition.
Turn dial to Auto, press the Alarm button,
review the alarm conditions, and address
the issue(s).
Controller
alarm; No
2-Wire Module.
The IVM 2-Wire
Interface Module
is not properly
attached to the
controller module
slots.
Check the upper status light on the IVM
2-Wire Interface Module. It should be solid
green if it is properly connected to the
controller. Remove and reinstall the module
making sure it is fully seated in the module
slots.
Controller
alarm; 2-Wire
path Off.
Someone has
manually turned the
2-wire path Off.
Turn dial to Off, press the 2-Wire Path button,
and turn the 2-wire path On.
Controller
alarm;
Duplicate
Device Address.
Duplicate Device
addresses have been
entered.
Note the duplicate Device Addresses posted
in the alarm screen, verify and enter the
correct Device addresses.
Controller
alarm; Short
Finding Mode.
2-wire path is
shorted and the
controller has
automatically
switched to the
Short Finding Mode.
The lower left
status light on the
controller is dark.
Disconnect the 2-wire cables from the IVM
2-Wire Interface Module one at a time until
the alarm condition clears. The lower left
status light on the controller will alternate
between red and green when the wire path
with the short is removed.
Trace the path of this 2-wire cable and look
for source of issue (disturbed soil, new tree or
fence post, etc).
Disconnect the 2-wire cable halfway between
the controller and end of cable and check to
see if the alarm clears to help identify short
location on the cable.
Use a volt/ohm and clamp meter to identify
which devices are receiving power.
Fix the short and check that the alarm is
cleared.
Controller
alarm; No
Device
Addresses.
Device addresses
have not been
entered for any
stations.
Turn dial to 2-Wire Settings / Station Setup.
Enter the address (see label on each Device)
for each station. Addresses are also required
for Master Valves, Weather Sensors and Flow
Sensor.