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Z Series RO System by GE Osmonics
5.11 TDS Reading Too High
1. Waste Flow Too Low
a. Open waste flow control valve.
2. Waste Pressure Too Low
a. Adjust waste flow control valve.
b. Adjust waste pressure regulator.
3. Product Flow Too High
a. See 5.9
4. Membrane Scaled Or Fouled
a. Verify condition of pretreatment equipment.
b. See membrane cleaning procedure in this manual.
5. Erroneous Meter Readout
a. Verify water quality with independent meter and check conductivity probe
connection.
b. Check all quick-disconnect connections.
c. Replace inlet water sensor probe.
d. Replace product water sensor probe (percent rejection).
e. Replace monitor circuit board.
6. Membrane Failure
a. Replace membrane.
7. Change In Feed Water TDS
a. Verify feed and product water quality with independent meter.
b. Softener problem, rinsing out high levels of salt.
5.12 RO Pump Leaks At Inlet
1. Inlet Connection Leaking
a. Tighten inlet fitting.
2. Mechanical Seal Failure (Non-Submersible Only)
a. Replace seals.
5.13 Leaks
1. Any leak from any part of the system should be corrected as soon as possible.
Left unattended, leaks can cause secondary damage necessitating expensive
repairs.
2. Reference the Maintenance Procedures for Leak Repair.
1238339b – 16Oct03 5 - 10 Troubleshooting