Specifications

23G-Series RO System
3024270 Rev G 93 14Oct13
Troubleshooting Guide – EMC-100 Display Failures
Symptom
Possible Causes
Remedies
permeate and/or
diaphragm valves
Contact your equipment supplier for
assistance.
Check fitting.
Tank level control
feature does not work
Faulty float/tank level control.
Replace float/tank level control.
Input wires not properly
connected.
Refer to Section 6.1 and Figure 4.6.
Incompatible level controller.
Water flowing when
machine is turned off
Inlet solenoid valve or diaphragm
valve not closing or seating
properly. Solenoid and diaphragm
valve tubed incorrectly.
Clean or replace the valve(s). Clean and
sanitize the membranes immediately. Water
must not pass through inlet when the machine
is off.
ECM-100 display
screen backlighting
flickers (Note: a slight
flicker is normal)
Power line disturbance.
Install a surge protector and AC line emi/rfi filter
device between the ECM power cord and the
power source. Note: Some minor flickering is
normal. Check for loose fuse on relay board,
loose wiring connection and ribbon cable
between boards.
LCD screen blank or
contains garbled text
Power line interruption or
electrical noise.
Pressing the ESC button should clear screen,
power down for 2 minutes and restart.
Most or all lights are
off
Blown fuse or loose ribbon cable
between Main and Relay Boards.
Check fuses, check and reseat the ribbon
cable. Check for loose fuse holder.
Bad Relay/Main Board.
Contact your equipment supplier for
assistance.
Lost 110/220 VAC power to the
ECM-100.
Contact your equipment supplier for
assistance.
Power surge possibly due to
lightening strike or voltage surge.
Replace damaged parts and install a surge
protector. Contact your equipment supplier for
assistance.