Troubleshooting; Error Detection; Watering Issues; Electrical Issues - Rain Bird ESP-RZXe Installation And Operation Manual

Troubleshooting

Error Detection

The ESP-RZXe controller has a built-in error detection that
senses a electrical short circuit or overload condition on a
Zone's output line.
In the event of an error condition, the following steps
take place regarding the error:
l The affected Zone number and "Err" alert message will l
show on the display when the unit is in either AUTO or
MANUAL WATERING mode.

Watering Issues

Problem
Programmed schedules
and manual watering
functions do not start.

Electrical Issues

Problem
Display is blank.
Display is frozen and
controller will not accept
programming.
Possible Cause
Water source not supplying water.
Wiring is loose or not properly
connected.
Field wires are corroded or
damaged.
Connected rain sensor may be
activated.
Jumper wire connecting the two
SENS terminals on the terminal
block may be missing or damaged.
Possible Cause
Power not reaching the controller.
An electrical surge may have
interferred with the controller's
electronics.
l All irrigation for the affected Zone is cancelled and l
watering advances to the next operable Zone in the
irrigation queue.
b l
NOTE: The controller will attempt to water the
affected Zone again at the next scheduled watering.
Completion of a successful watering will clear the
error condition associated with that Zone.
Possible Solution
Verify there is no disruption to the main water line
and that all other water supply lines are open and
functioning properly.
Check that field wiring and master valve or pump start
relay wiring is securely connected at the controller and
in the field.
Check field wiring for damage and replace if necessary.
Check wiring connections and replace with watertight
splice connectors if needed.
Let the rain sensor dry out or else disconnect it from the
controller terminal block and replace it with a jumper
wire connecting the two SENS terminals.
Jumper the two SENS terminals on the controller
terminal block by connecting them with a short length
of 14 to 18 gauge wire.
Possible Solution
Verify the main AC power supply is securely plugged in
or connected and working properly.
Unplug the controller for 2 minutes, then plug it back in.
If there is no permanent damage, the controller should
accept programming and resume normal operation.
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