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SYMPTOM
Declining rejection
(high permeate conductivity)
(continued)
Switch ON, unit not operating
POSSIBLE CAUSES
O-ring seal broken or damaged
Change in incoming water
quality
Inaccurate conductivity
monitor or fouled probe
Pressurized storage switch or
float switch has cut power to
machine
Thermal overload in motor has
tripped
No power to machine
Motor and/or pump not operat-
ing properly
REMEDIES
Replace the O-ring, check the
sealing surfaces on the O-ring
groove, interconnectors, and end
caps. Replace damaged parts.
Open the concentrate valve and
flush. Test the water for pH,
hardness, TDS, and iron content.
A water analysis should be sent
to GE Osmonics.
Calibrate the monitor with a
solution of known conductivity
or check the readings with
another conductivity meter.
Replace or clean the probe.
Check the connections between
the probe and monitor.
Check the permeate back pres-
sure or position of float in the
storage tank.
Allow the machine to cool;
check the feed water supply
and/or AMP draw to the motor.
Check the fuses or circuit break-
ers, measure the voltage.
See pump instructions. Contact
GE Osmonics for possible repair
or replacement.
TROUBLESHOOTING GUIDE