Operation Manual

20
POSSIBLE CAUSE
Faulty transformer.
Fuse blown.
Faulty solenoid coil.
Incorrect wiring or bad
wiring connection.
Incorrect programming
or blown fuse.
Short on keypad or
programming not
correct.
Too many start times
entered on automatic
programs.
Damaged main output
driver chip.
Faulty relay or pump
contactor.
Display damaged
during transportation.
TROUBLESHOOTING
SYMPTOM
No display.
Single Station
not working.
Fuse blows.
No automatic
start.
Buttons on
keypad not
responding.
System coming
on at random.
More than 1
station coming
on at once.
Pump start
chattering.
Display cracked
or missing
segments.
SUGGESTION
Check fuse. Check field wiring.
Check transformer.
Swap faulty station wire on controller
terminal block with known working
station wire. If the faulty valve still
does not work on the known working
connection then the solenoid coil
is faulty. The panel may need to be
repaired.
Check wiring and connections.
If unit works manually check
programming. Check fuse and field
wiring.
Check instruction book to ensure
programming correct. If keypad still not
responding return panel to supplier or
manufacturer.
Check number of start times entered on
each program. If programming is correct
return panel to supplier or manufacturer.
Check wiring and swap faulty station
wire(s) on controller terminal block with
known working station wire. If the same
outputs are still locked on, return panel
to supplier or manufacturer.
Electrician to check voltage on pump
relay or contactor.
Return panel to supplier or
manufacturer.