11
TROUBLESHOOTING GUIDE
SYMPTOM
CAUSE
DIAPHRAGM VALVE REMEDY
4.
Water leaks out at
sprinkler heads when
station is off.
A.
Closing mechanism
dirty or damaged and
does not seat properly
See Diaphragm Valve Disassembly Procedure. Check small ports for
blockage by debris; rinse and inspect diaphragm and diaphragm seat
for dirt or damage. Replace diaphragm or valve body if damaged.
B.
Valve not fully in
"Manual Off" mode
See 3-E above.
C.
Solenoid burned
out or obstructed
Turn off water. Remove solenoid. Check for twisting or damage to sole-
noid O-ring. Check solenoid plunger as in 3-B above. Rinse bottom of
solenoid and seating surface inside valve. Replace solenoid if dam-
aged.
D.
Low head drainage It is normal for water to temporarily continue to drain from the piping
through the lowest head on the line. The longer the piping, and the low-
er the slope of the pipe, the longer this will take.
Stop watering on the soggy zone for two days. Check the lowest head
on the line.
If area is very wet or a small amount of water drips from sprinkler, see 4
-A and 4-B above. If area around sprinkler has dried out somewhat, the
problem is probably due to drainage from the piping. This line drainage
can be stopped by using a Rain Bird Sprinkler or Rotor with a SAM
Check Valve. Different models are available through professional in-
stallers, retailers, or the Rain Bird Online Store.
5.
Valve won't turn off
manually
A.
Valve in "Manual
On" mode
See 3-E above
B.
Valve closing
mechanism stuck in
open position
See 3-C above
C.
Solenoid energized Stop power to valve
6.
Valve won't turn on
manually
A.
Flow control in
closed position
See 1-C above
B.
Valve opening
mechanism blocked by
debris.
See 2-D above
C.
Valve in "Manual
Off" mode.
See 2-A above
