10
SOLUTIONS TO COMMON PROBLEMS
PROBLEM POSSIBLE CAUSES & SOLUTIONS
One valve does not
turn on, all others
work correctly.
Wiring to valve broken.
Solenoid faulty - test valve with good
one.
Program set for OFF watering time for
that valve.
Flow control on valve adjusted to off.
Solenoid port clogged in valve, clean wit
paper clip.
All valves do not
turn on
Controller is running on battery only.
Check that the outlet and transformer ar
working.
Controller Program switch is not set on
RUN.
Program set for no watering time.
Wiring to valves broken - check common
wire.
Excess water pressure.
One valve won't
shut off
Manually close flow adjustment screw.
Valve needs cleaning or repair.
Display shows: AC
C Power to controller is off. Check that
AC power is on, then check that the
transformer is working (use a
multimeter).
Display flashing a
zone #
The wire to the flashing station and
common wire are shorted. Check wiring
connections at the valve, at the controlle
and in between. Another cause is a
shorted solenoid - A good solenoid has
15-35 ohms resistance.
Start times not
correct
There could be an overlap of start times
between programs A, B, & C. Set Start
Time to a different time in one program.
