Specifications

23G-Series RO System
3024270 Rev G 94 14Oct13
Troubleshooting Guide – 23G System Failures
Symptom
Possible Causes
Remedies
23G electrical machine
shutdown
ECM-100 “lockup” (usually due to
power fluctuation).
Power down for 2 minutes, then restart.
Check alarms, timers, and calibration
settings. Recall Factory Settings.
Thermal overload relay tripped
Turn the machine of, reset the relay, check
the motor amp draw and line voltage, Adjust
the overload relay based on the motor amp
draw if required. Check for excessive
pressure or flows.
Machine will not turn
on
Alarm condition has turned off
machine.
Check the ECM-100 display for Alarm
identification. Remedy the alarm. The ECM-
100 will remain in a state of alarm until the
OFF key is pressed.
Thermal overload in motor starter.
Check amp draw of the motor and reset
thermal overload.
Motor and/or pump not operating
properly.
See pump instructions. Contact your
equipment supplier for possible repair or
replacement.
Fluid temperature over 90F
(32C).
Check the feedwater supply temperature.
Maximum operating temperature is 90F
(32°C).
No power to machine.
Check the fuses or circuit breakers, measure
the voltage.
23G machine blowing
fuses
Faulty wiring to pretreatment or
tank level switches.
Remove wires at 17, 38, 40, and 42 to isolate
problem. Repair as needed.
Shorted flow sensor.
Flow pickup sensor hot to the touch. Replace
and calibrate sensor.
Shorted pressure transducer or
faulty cable.
Contact your equipment supplier for
assistance.
Fault on Main Board.
Contact your equipment supplier for
assistance.
One or more of the
motors or solenoid
valve is not being
energized
Faulty solenoid or wiring, or faulty
Relay or Main board.
Observe the lights on the ECM-100 front
panel, check timer, and alarm settings. Check
for AC power out of the appropriate terminal
on the Relay Board.
Loose connection at the Relay
Board.
Check all connections.