Specifications

23G-Series RO System
3024270 Rev G 90 14Oct13
Troubleshooting Guide - Machine Performance
Symptom
Possible Causes
Remedies
Sensor cable not fully inserted
into flow turbine element housing.
Insert the cable so it snaps into place.
Flow indicator inaccurate
(possibly due to fouled turbine in
sensor).
Check the flow rate manually with a stopwatch
and calibrated container. If reading is off from
ECM-100 display by >10%, check for a fouled
turbine and clean or replace as required. Check
settings in Calibration Menu (06).
ECM-100 flow reading “lockup”.
Pressing the ESC button usually clears the
lockup. Power down for 2 minutes, check Alarm
Limits and Calibration Menu settings, recall
Factory Settings.
Low concentrate flow
rate, normal or higher
than normal operating
pressure (0 gpm to
20% less than desired)
Dirty or fouled membrane
elements.
Flush, clean, and sanitize the membrane
elements.
Concentrate valve or concentrate
orifice pressure not properly
adjusted.
Remove the concentrate valve stem and/or
disassemble the plumbing to the orifice. Clean
the orifice as required.
Concentrate outlet line restricted.
Examine the concentrate line for obstructions
or kinks, and repair or replace the tubing.
Faulty flow turbine or cable (all
pressures normal).
Switch sensor cable between concentrate and
permeate flow turbines to isolate the problem to
cable or turbine.
Cable or turbine element visibly
damaged.
Repair or replace the cable or turbine.
Sensor cable not fully inserted
into flow turbine element housing.
Insert the cable so it snaps into place.
Flow indicator inaccurate
(possibly due to fouled turbine in
sensor).
Check the flow rate manually with a stopwatch
and calibrated container. If the reading is off
from the ECM-100 display by >10%, check for
a fouled turbine and clean or replace as
required. Check setting in Calibration Menu
(06).
ECM “lockup” (software version
E6.9 or greater).
Pressing the ESC button should clear the
lockup. Power down for two minutes, check
Alarm Limits and Calibration Menu settings,
and recall Factory Settings.
Low rejection and high
permeate flow
(hydrolyzed
membranes)
Membrane elements dirty or
fouled.
Flush, clean, and sanitize the membrane
elements.
O-ring seal broken or damaged.
Check the sealing surfaces on the O-ring
groove, interconnectors, and end caps.
Replace damaged parts.