Seeley Climate Wizard CW-H10 Installation & Operation Manual page 30

MAINTENANCE INSTRUCTIONS
All faults below shut the cooler down unless stated.
Wall Fault Description
Control
Fault Code
Fault PLC – PCBA COMMUNICATION FAILURE
Code 1 Cooler PLC has lost communication with PCBA
fitted inside control box.
Fault FAILURE TO DETECT WATER AT LOW
Code 2 PROBE
No water at low probe 20 minutes after solenoid
valve opening.
Fault FAILURE TO DETECT WATER AT HIGH
Code 3 PROBE
No water at high probe 20 minutes after water
detected at low probe.
FAILURE TO CLEAR LOW PROBE DURING
Fault
DRAIN
Code 4
Water still detected at low probe 20 minutes after
drain opened.
Fault WATER DETECTED AT HIGH PROBE BUT
Code 5 NOT LOW PROBE
FAILURE TO CLEAR HIGH PROBE
Fault
Code 6 Water still detected at high probe after 4 hours
running in Cool mode.
Fault MOTOR ERROR
Code 7
Fault CHLORINATOR FAULT
Code 10 Chlorinator has reached end of life or is
experiencing a short circuit.
COMMUNICATION FAILURE
Fault
Code 16 Wall Controller has lost communication with
cooler
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CW-H10, H15, H15S, H15S Plus 859749-A
Suggested Remedy
Check LED status on PCBA.
(Refer to CW-H Manual for further details)
Check communication wiring between PLC and PCBA
Replace PCBA
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.
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.
Check drain valve open.
Check drain pipework not blocked.
Check solenoid valve closed.
Clean water management probe.
Clean water management probe.
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.
Check Motor Power Cable connections.
Check Motor Communications Cable connections.
Check cooler PLC flashing LEDs for fault type.
Check no debris between chlorinator plates.
Replace Chlorinator
Ensure cooler is powered up.
Check communication cable connections including 120Ω Modbus
terminating resistors.