Installation and Service Manual – L Series Reverse Osmosis System
Systems and Components
Membranes
,
Filters
,
Chemicals
2325 Cousteau Ct., Vista, CA 92081 USA • www.appliedmembranes.com • E-mail: [email protected]
Copyright © 2008 Applied Membranes, Inc. All Rights Reserved.
Page 21
Pump is working below its
capacity
(continued from previous page)
Low motor RPM
Check your motor to make sure it is working
properly and that it is wired for the voltage
and frequency (50 or 60 Hz)
Inside of the pump is wearing
out, caused by materials getting
into the pump
Replace the pump. To prevent future
failures, ensure an adequate filter on the
inlet line.
Relief valve setting is incorrect
Contact the manufacturer about having the
relief valve reset.
Pump is leaking
Mechanical haft seal or rubber
O-ring is failing
Replace the pump.
Relief valve cap or strainer cap
is loose
Tighten the cap on the relief valve or
strainer.
Relief valve cap or strain cap o-
ring or gasket are damaged
Replace the damaged O—ring or gasket.
Contact the manufacturer to order.
Inlet or outlet port fittings are
loose or sealant failed
Apply joint compound or tape and reinstall
the fittings. Do not allow sealant to fall into
the pump.
Pump is noisy
Inlet or internal strainer is
clogged or restricted
Clean out the inlet line. If you have an inlet
filter or internal strainer, clean it (replace it if
more than 20% clogged). Do not allow
debris to fall into pump from filter.
Acorn nut on the relief valve or
strainer cap is loose.
Tighten the acorn nut on the relief valve or
the strainer cap.
Gasket or O-ring on the acorn
nut or strainer cap is defective
Replace the gasket or the O-ring on the
acorn nut or the strainer cap. Do not
tamper with the relief valve setting.
Coupling, mounting bolt, or V-
band clamp is loose
Turn off the motor and disconnect the
power to the motor. Then properly align
and tighten the loose component.
The pump and motor are
misaligned
Turn off the motor and disconnect the
power to the motor. Remove the pump
from the motor. Then remount the pump
onto the motor, making sure it is aligned
properly.
Motor is stalling or overloads
are tripping out
The pump and motor are
misaligned
Turn off the motor and disconnect the
power to the motor. Remove the pump
from the motor. Then remount the pump
onto the motor, making sure it is aligned
properly.
Lime and mineral deposits in the
pump are causing internal
binding
Replace the pump.
Motor may be defective.
Check the motor and replace if necessary.
Motor may be wired for wrong
voltage.
Check wiring against the motor wiring
diagram.
