Suggested Preventative Maintenance 61
Cat. No. 01016370
Troubleshooting Guide
PROBLEM OR SYMPTOM CHECK PROCEDURE CAUSE
Slight Leak to Drain Disconnect pilot valve tubing at back-
wash control.
Flow from tubing indicates leaky seal
in pilot valve spool.
If pilot valve is not leaking, use a test
kit and check for hard water at the
drain.
Possible ruptured diaphragm. If wa-
ter tests soft then valve #6 is open. If
the water tests hard then valve #5 is
open.
High Flow to Drain During Service Check position dial pilot. If not in the H (Home) position, rotate
the dial in the direction of the arrow
indicator on the dial to the home posi-
tion. If the flow stops, check the pilot
drive assembly.
Use a test kit and check the hardness
of the water at the drain.
Use a test kit and check the hardness
of the water at the drain. soft then
valve #6 is open. If the water tests
hard then valve #5 is open.
Failure to Draw Brine Check that the brine line is
unrestricted.
Restrictions will not allow the system
to draw brine.
Check the water pressure. Water pressure must be a minimum of
30 psi during regeneration.
Verify the pilot is in the #2 (brine draw)
position.
If the pilot is not in the proper position
for the brine draw/slow rinse cycle, the
system will not draw brine. Check the
pilot drive assembly.
Verify there is a vacuum on the brine
line. Disconnect the tubing to the brine
valve and feel for suction.
If there is a vacuum, the brine valve
should be checked for proper opera-
tion. No vacuum indicates:
• Drain line is too small or discharg-
ing at a level too high above the
floor.
• The pilot strainer is plugged.
• Plugged brine injector nozzle.
• Valves #1, #2 or #4 are not closing
fully. Possible ruptured diaphragm.
• Plugged backwash flow control-
ler.
• Dirty resin bed.
• Valve #6 not opening.
Diaphragm Valve Does Not Close.
CAUTION: make certain that the
water pressure is relieved from the
system before removing any dia-
phragm valve cover.
Loosen the tubing from the valve port
cover.
Turn off the water pressure and disas-
semble the diaphragm valve.
If there is no flow from the tubing, the
pilot strainer may be plugged.
• Seat washer may be dirty, worn or
loose.
• Seat may be eroded.
• Diaphragm may be ruptured.
Diaphragm Does Not Open Loosen the tubing from the valve port
cover.
If there is flow from the tubing the pi-
lot valve spool seal is leaking.If there
is no flow, verify that the tubing from
the diaphragm valve cover to the pilot
body is not plugged.
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