35
TROUBLESHOOTING GUIDE ..................................................................................................
PROBLEM
CAUSES
SOLUTIONS
The controller repeats itself or continu-
ously watering even when it should not
be on/controller cycles over and over.
Too many start times (user programming
error).
Only one start time per active program is
required. Refer to
"Setting Program Start
Times"
on page 24.
There is no display.
Check AC power wiring.
Correct any errors.
The display reads “ERR”.
Electrical noise is entering the system.
Check the SmartPort
®
wiring harness. If
the wires were extended then they will need
to be replaced with shielded cable. Contact
your local distributor for information on
shielded cable.
The display reads “P ERR”.
There is a ground fault in the wire to the
pump start or master valve.
Check the master valve or pump start wire
for continuity. Replace or repair the broken
wire. Check that all wire connections are
good and water tight.
The display reads a station number
and ERR, such as “2 ERR”.
There is a ground fault in the wire leading to
that station.
Check the station wire for continuity. Replace
or repair broken wire. Check that all wire
connections are good and water tight.
The display reads “NO AC”.
There is no AC power present to operate
controller/valves.
Check to see if the transformer is properly
installed.
The display reads “SEN OFF”.
The rain sensor is interrupting irrigation or
not installed.
Slide the Rain Sensor switch on front panel
to the bypass position to bypass rain sensor
circuit.
