Rain Bird ESP-LXIVM, Troubleshooting Manual, Page: 34 / 38

34
ESP-LXIVM Controller Troubleshooting Guide
Table of
Contents
Category Issue Potential Cause Solution
Master
Valves
The Master
Valve will not
open when
stations are
operating.
2-wire device or
valve wires are not
spliced correctly.
Turn dial to Diagnostics / Diagnostics / Select
Ping MV and ping the MV address. If the ping
test fails
check the decoder and valve wire splices and
repeat the ping test.
IVM-Device is not
functioning or
damaged.
Turn dial to Diagnostics / Diagnostics / Ping
Valve or Sensor, then ping the MV address. If the
ping test fails swap the device, enter the new
address and repeat the ping test.
IVM 2-Wire
Interface
Module
No output
from the
module.
Fuses in the module
have blown due to
short or secondary
power connected to
the 2-wire path.
Find the source of the short or power
connected to the 2-wire path and address
the problem. A replacement 2-wire Module is
available for purchase.
Module is in
Automatic Short
Finding Mode due to
short or secondary
power connected to
the 2-wire path.
Find the source of the short or power
connected to the 2-wire path and address
the problem.
Pump Start
Relays
The controller
cannot close
the pump
start relay that
is connected
to a IVM-OUT.
Amp draw of the
pump start relay
is more than the
Device can provide.
Use a Rain Bird PSR-Series Pump Start Relay
that incorporates an ice-cube relay, double
relay system. You can also add an ice-cube
relay to the existing pump start relay. Contact
Rain Bird Technical Services or Global Support
Plan for relay model and wiring diagram.
Controller
LCD Display
The controller
display is either
too light or too
dark.
The display contrast
needs to be
adjusted.
Turn dial to Off, press Co/- buttons to
adjust display contrast.
Controller
display is
blank.
Controller LCD
display is damaged.
Plug in a 9V battery into the battery slot
on the back of the controller front panel. If
information is now visible on the display it
is not damaged and working correctly. See
other potential causes. If no information is
displayed, remove the 2-wire module. If the
alarm light on the front panel turns on after 1
minute but no information is in the display, the
LCD is damaged and the front panel should
be replaced. A replacement panel is available
for purchase.
Primary power to
the controller has
been lost or turned
off.
This can be verified by checking the status
lights on the 2-wire module. If both status
lights on the module are dark the primary
power is likely off. Find primary power source
to the controller and turn it on. If the power
breaker is tripped or fuse is blown, find source
of problem, fix the issue, and turn the power
back on.
Controller ribbon
cable is not
connected or
damaged.
Check to make sure the ribbon cable is securely
connected to both the controller backplane and
the front panel. If the cable has broken wires or
connectors, replace it.