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FAULT CODES INDICATED BY LED’s ON
THE COOLER ELECTRONICS MODULE
TRI-COLOUR LED
LED
Wall Control
Fault Code Fault Description
Suggested Remedy
2 Green Flash then
2 seconds off
-
NORMAL OPERATION
-
1 Red Flash then 2
seconds off
Fault Code #1
COMMUNICATION FAILURE
Wall Control: No valid message for 60 seconds
Check communication cable connections.
Replace Wall Control.
Replace Communication Cable.
2 Red Flash then 2
seconds off
Fault Code #2
FAILURE TO DETECT WATER AT LOW PROBE
No water at low probe 20 minutes after solenoid valve opening.
Check water supply on.
Check solenoid valve open.
Check drain valve closed.
Check water management probe position relative to drain
valve overflow.
Clean water management probe.
3 Red Flash then 2
seconds off
Fault Code #3
FAILURE TO DETECT WATER AT HIGH PROBE
No water at high probe 10 minutes after water detected at low
probe.
Check solenoid valve open.
Check water management probe position relative to drain
valve overflow.
Clean water management probe.
Check water supply pressure sufficient to maintain tank
capacity.
4 Red Flash then 2
seconds off
Fault Code #4
FAILURE TO CLEAR LOW PROBE DURING DRAIN
Water still detected at low probe 5 minutes after drain opened.
Check drain valve open.
Check drain pipework not blocked.
Check solenoid valve closed.
Clean water management probe.
5 Red Flash then 2
seconds off
Fault Code #5
WATER DETECTED AT HIGH PROBE BUT NOT LOW PROBE.
Clean water management probe.
6 Red Flash then 2
seconds off
Fault Code #6
FAILURE TO CLEAR HIGH PROBE.
Water still detected at high probe after Pump Test sequence.
Check solenoid valve not stuck open.
Check all pumps operating when required
Clean pumps.
Check pump hoses not blocked.
Check excessive rain not entering cooler.
Clean water management probe.
7 Red Flash then 2
seconds off
Fault Code #7
SUPPLY MOTOR ERROR.
Check Motor Power Cable connections.
Check Motor Communications Cable connections
-
Fault Code #8
WARM START
Mains input voltage is under 93Vac but not low enough to reset
the PCB. Fault Code recorded when voltage returns to useable
level.
Consult with Building Manager.
1 Green/Red Flash
then 2 seconds off
CHLORINATOR PERFORMANCE DEGRADED
Chlorinator operating current is less than set point.
Clean Chlorinator
Check flushing hose correctly attached.
Prepare to replace Chlorinator at next service.
2 Green/Red Flash
then 2 seconds off
CHLORINATOR PERFORMANCE SERIOUSLY DEGRADED
Chlorinator operating current is less than 50% of set point.
Replace Chlorinator now to avoid fault in near future.
3 Green/Red Flash
then 2 seconds off
+ 10 Red Flash
Fault Code #10 CHLORINATOR REACHED END OF LIFE
Replace Chlorinator now.
4 Green/Red Flash
then 2 seconds off
CHLORINATOR SHORT CIRCUIT WARNING
Chlorinator current >> target.
Clean Chlorinator
Check flushing hose correctly attached.
Check no debris between the Chlorinator Plates.
5 Green/Red Flash
then 2 seconds off
+ 10 Red Flash
Fault Code #10
CHLORINATOR SHORT CIRCUIT FAULT
Chlorinator current >> target again within 15 mins of reservoir
drain and re-fill.
Check no debris between the Chlorinator Plates.
Replace Chlorinator now.
13 Red Flash
Fault Code #13 EXHAUST MOTOR ERROR.
Check Motor Power Cable connections.
Check Motor Communications Cable connections
The CW3 cooler has 2 LED’s visible on the control PCBA. One
is Tri-Colour and can glow Green, Red or Amber.
The other is Red only.
RED COLOURED LED:
This LED indicates the status of the
conductivity measurement circuit and the status of the Salinity
Control Method
ILL2465-C
RED LED
TRI-COLOUR LED
ILL2465-C
RED LED
LED
Fault Description
On Solid
No Water at Low Probe or Conductivity <9μS/cm
1 Red Flash
Water Manager and Conductivity < 1500μS/cm
2 Red Flash
Water Manager and Conductivity < MAX (Parameter A5).
3 Red Flash
Count 8 re-fills to High Probe (Parameter A1)
4 Red Flash
24 Hour Clean Drain Mode Running