GE 000 gpd Operation And Maintenance Manual page 34

SYMPTOM
Declining rejection (high
permeate conductivity)
(continued)
Machine not operating
TROUBLESHOOTING
POSSIBLE CAUSES
O-ring seal broken or dam-
aged
Change in incoming water
quality
Inaccurate conductivity moni-
tor or fouled probe
Pressurized storage switch or
float switch has cut power to
machine
External control or permeate
purge control contacts have
shut machine down
29
REMEDIES
Replace O-ring, check the
sealing surfaces on the
O-ring groove, intercon-
nectors 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 for review.
Calibrate the monitor with
a DS standard solution 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
pressure or position of float
in the storage tank.
Check for proper orienta-
tion of control contacts.
Restart machine manually
or wait for automatic start-
up.