GE Osmonics E4H Series, Operation And Maintenance Manual

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E4H Series
Operation & Maintenance Manual
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6. TROUBLESHOOTING
This troubleshooting guide can assist you in identifying common operating problems
you may experience with your machine. The operator can easily correct many of
these problems; however, for those that persist or are not understood, you should
contact the GE Water & Process Technologies technical support team. Have the
following information available when calling the GE Water & Process Technologies
technical support team:
•
Machine installation date.
•
Model number (found on right-hand side of front panel).
•
Serial number (found on right-hand side of front panel).
•
Daily Log Sheets.
•
Detailed description of problem.
Table 5. Troubleshooting Guide
Symptom (Alarm) Possible Cause Remedies
Insufficient feed water
pressure Increase the feed pressure, open the
inlet/feed valve, check for
restrictions, and consider installing a
feed water boost pump.
Clogged pre-filter Replace the pre-filters.
Low inlet pressure
(low inlet alarm)
Solenoid valve not
opening Clean or replace the solenoid valve.
Clean air line for adequate pressure.
Check regulator for correct
operation and setting.
High flow rates Close the orifice bypass valve, check
the permeate and concentrate flow
rates and adjust if necessary.
Excessive permeate flow may
indicate improper interconnector
installation.
Pump discharge screen
(low primary pressure) Inspect and clean.
Dirty or fouled
membranes
(low final pressure) Clean the membranes.
Warm operating
conditions
Correct temperature.
Pump rotating
backwards
(3-phase power only)
Switch any two 3-phase leads to the
motor starter.
Low operating
pressure
Pump not operating
correctly See pump instructions.