Lync WQ-RS
SECTION 3: OPERATION
L- OMM-005_A
•
2/23/2022
Technical Support • (800) 433-5654 • Mon-Fri, 8 am - 5 pm EST
30
of
34
RO SYSTEM TROUBLE SHOOTING
PROBLEM
REMEDY
General
High Product Water TDS
Membrane expanded.
Replace membrane.
Membrane attack by chlorine
Carbon pre-filter may be exhausted. Replace with a
new cartridge.
Clogged pre-filter-creates pressure drop and
low reject flow.
Replace pre-filter cartridge.
Feed pressure too low.
Feed pressure must be at least 20psi.
Insufficiently flushed post-filter cartridge.
Flush post-filter with pure water.
Brine seal on membrane leaks.
Determine if seal or O-ring is bad. Replace as
needed.
No Product Water or Not Enough Product
Water
Feed water shut off.
Turn on feed water.
Low feed pressure.
Consider booster pump.
Feed pressure must be at least 20psi.
Replace pre-filter cartridge.
Pre-filter cartridge clogged.
Determine and correct cause; replace membrane.
Membrane fouled. Product check valve stuck. Replace check valve fitting.
Low pump discharge pressure
Open pump discharge valve, replace pump
