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Millenium™ RO System by GE Osmonics
14693e - 31 Mar 03 5- 7 Troubleshooting
5.5 Low Pump Pressure
1. No pressure develops above level of feed pressure.
a. Verify motor operation and water line connections.
b. Verify flush valve is in the operate position.
c. Verify (lower than normal) flow from product, if high see membrane problem.
d. Verify (lower than normal) flow from waste, if high check flush valve operation.
e. Pump damaged or worn out, replace pump.
2. Pressure develops but does not achieve normal operating pressure.
A. Waste or product flow too high.
a. Check water temperature and flow rate.
b. Check quality of product water.
B. Faulty inlet pressure regulator.
a. Replace regulator.
C. Pump adjusted improperly
a. Adjust pump at pump head and regulator.
D. Pump worn out or damaged.
a. Replace pump.
5.6 Pressure Gauge Vibrates Erratically
1. Air in gauge tubing.
a. Loosen tube fitting at gauge to bleed air.
2. Obstruction in pressure gauge orifice.
a. Remove obstruction.
3. Product return check valve operation (Product Gauge Only)
a. Check and remove obstruction in return check valve.
b. Replace check valve.
4. Faulty gauge.
a. Replace gauge.
5. Inlet regulator faulty.
a. Replace regulator.
5.7 Excess Product Pressure (too high)
1. Inlet pressure regulator improperly adjusted.
a. Decrease pressure regulator to adjust maximum product setting.