Hunter PSC-Z Series

61
SOLUTION
• Check valve and valve
wiring (and valve
common).
• Check pump and
pump relay. Replace
if defective.
• Verify AC power and
wiring.
• Press any button
• Reprogram controller
• Reconnect the jumper
between the rain
sensor terminals of
the terminal block
• Verify operation of
rain sensor. Replace
if defective (reinstall
jumper until new rain
sensor is installed)
• Disconnect the jumper
(jumper should be
disconnected when
using a rain sensor)
• Verify operation of
sensor and proper
wiring
• To reset the
controller to default
program values,
insert screw driver
into the reset slot on
the faceplate (near
the terminal block)
• Press END/CANCEL
to remove error
message and check
for shorts in station
field wiring
CAUSE
• Faulty or mis-wired
valve
• Faulty pump or pump
relay if used
• No AC power and no
backup battery
installed (or dead
battery)
• Unit is initially
powered up
• Extended power
outage has occurred
and built-in backup
period has expired
• If you are not using a
rain sensor:
The jumper between
the sensor terminal is
missing or loose
• If you are using a rain
sensor:
the sensor has been
activated by moisture
or is stuck "open"
• Jumper between
sensor terminals is
still connected
• Rain sensor is
defective or mis-
wired
• This is due to the
built-in backup
• An error occurred the
last time station tried
to water
PROBLEM
Display indicates
irrigation but valve is off
Display is blank
Time of day is blinking
Display reads
"SENSOR RAIN OFF"
Rain sensor does not
suspend irrigation
Controller was
programmed and now it
doesn't return to the
default program values
Display reads
"STATION 1 E:rr"
T ROUBLESHOOTING G UIDE