GE OSMONICS MILLENIUMTM REVERSE OSMOSIS UNIT - Manual (Page 73)

M Millenium™ RO System by GE Osmonics
14693e - 31 Mar 03 5- 6 Troubleshooting
2. Pump pressure too high.
a. Adjust pressure at pump head.
b. Check waste flow-path for obstruction.
c. See
5.1.6
d. See 5.1.7
3. Thermal overload trips
a. Verify line voltage and motor amperage draw.
b. Disassemble pump/motor at clamp and inspect coupler for wear.
c. Pump pressure too high (see 5.2.2).
5.3 Motor Runs Hot
1. Pump/motor binding.
a. Remove pump head and try restarting motor.
b. Inspect pump and motor coupling for wear.
c. Clean any debris or liquid from connection area.
d. See 5.5
e. Replace
pump.
2. Fan obstructed or inoperative.
a. Verify no debris is obstructing fan vent.
b. Verify fan operation.
3. Excessive current draw.
a. Verify that flow rates and pressures are within RO specifications.
b. Check motor/pump coupling for alignment.
c. Confirm amperage draw with meter.
d. Motor insulation shorted, replace motor.
4. Voltage too low.
a. Check voltage against serial label and motor label, correct condition.
5.4 Water Produced While RO is Off
1. Faulty inlet water solenoid valve.
a. Cycle valve off and on with inlet water valve switch to clear obstruction.
b. Remove valve and clear obstruction.
c. Replace
valve.
2. Fault inlet water valve switch.
a. Verify switch is in OFF position.
b. Check switch with ohm meter, replace switch.