Loading ...
Loading ...
Loading ...
10
TROUBLESHOOTING GUIDE
SYMPTOM CAUSE DIAPHRAGM VALVE REMEDY
2. Valve won't turn on
with controller
(continued)
D. Valve opening
mechanism damaged
or clogged with debris.
See if you can flush debris from the valve by using the flush mode. If
not, turn off the water, disassemble, inspect and clean the valve (See
Diaphragm Valve Disassembly Procedure). Pay particular attention to
cleaning the small bleed ports underneath the solenoid and on the sur-
face of the diaphragm. Check to see that the diaphragm is not torn or
damaged. Replace diaphragm if damaged. If water is particularly dirty,
install a 100 mesh or finer filter before the valve to prevent future grit
build-up.
E. Valve installed
backwards
Reinstall valve so that water flow is the same direction as arrows em-
bossed on valve.
A. When the valve
won't turn off with the
controller, the fore-
most goal is to stop
the flow of water.
Put controller in auto/off mode. If watering continues. . .
Unplug controller. If this stops the watering, the problem is probably
in the controller. If watering continues. . .
Turn flow control knob (if there is one) to lowest flow position. If this
does not shut off the flow completely. . .
Turn off manual main shut off valve to sprinkler system
When water flow is stopped, check steps B through D for trouble-
shooting procedure
3. Valve won't turn off
with controller
B. Solenoid burned
out or plunger clogged
Check solenoid as in 2-C. Check for dirt impeding the movement of the
plunger. To do this, turn off the water and remove power to the so-
lenoid. Unscrew the solenoid. Sometimes the plunger inside the sole-
noid can become stuck in the upward position due to dirt in the sole-
noid. Run water into the solenoid to dislodge dirt. Push a piece of wire
into the small hole in the retainer at the bottom of the solenoid to see if
the plunger inside will move up and down freely. If not. replace the so-
lenoid.
C. Valve closing
mechanism stuck in
open position due to
debris or damage
See Valve Disassembling Procedure A. Check small ports for blockage
by debris; rinse and inspect diaphragm and diaphragm seat for dirt or
damage. Replace diaphragm if damaged.
D. Damaged or misa-
ligned parts allow wa-
ter to leak from valve
Check valve body and bonnet for cracks. Check integrity of seal be-
tween body and bonnet and solenoid and bonnet. Repair or replace
parts as necessary to stop leak.
E. Valve set in
"Manual On" mode
Depending on the model, you will need to be sure the solenoid is tight-
ened into the full clockwise position ("Manual Off") or turn the bleed
screw or knob on top of the valve clockwise to tighten. See section enti-
tled "How to Operate."
Loading ...
Loading ...
Loading ...