Halstead Eden CBX, Installation And Servicing Instructions

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LED CODE
FAULT/EFFECT REASON ACTION
1 2 3 4
G
Check no air is in heat exchanger/CH system
G
Check pump operation
HHHG
Overheated appliance Water temperature greater than 105 °C
G Check diverter valve operation
G Check PCB/X1C connector
G Check mains lead to pump
G
Check flow thermistor
G
Check gas supply
HHGH
No gas/No flame Low gas pressure
G
Check gas service cock
G
Check gas valve and lead
G
Check detection electrode/lead
HHGG
Lockout flame signal/ No flame signal on ignition, or loss
G
Check gas supply
Lockout after 5 ignition of signal during operation
G
Check gas valve and lead
attempts
G
Check PCB/X2A & X2B connectors
G
Check spark generator/spark electrode
G
Check mains earth lead continuity
G
Check flue sensor
HGHH
Flue gas sensor/ Flue gas temperature greater than 95 °C
G
Check flue system
No flame
G Check no air is in heat exchanger/CH system
G Check pump
G Check PCB/PCB connectors
HGHG
Defective sensor/ Defective flow, return or flue sensor
G
Check flow, return and flue sensors
No flame
G
Check wiring to sensors
G
Check PCB/X6 & X8 connectors
HGGH
Defective gas valve/
5 sec flame signal after
G
Check gas valve and lead
Flame continues after
burner is switched off
G
Check PCB
demand ends
G
Check fan
G
Check mains fan lead & connector
HGGG
Defective fan/No flame Missing or Erroneous RPM signal
G
Check low voltage fan lead & connector
G
Check PCB/X3 connector
G
Check pump operation
G
Check diverter valve operation
GHHH
CRC error/No flame Internal Eprom data error G Check PCB
GHHG
Error in power supply/
Low mains voltage
G Check mains voltage
No flame G Check PCB connectors
G
Check water pressure
GHGH
Water flow failure/
G
Check pump
Flame for a short Sensor temperature differential incorrect
G
Check no air is in heat exchanger/CH system
period only
G
Check flow, and return sensors
G
Check wires to sensors not crossed
GHGG
PCB error/No flame Internal error
G
Check PCB
GGHH
BCC error/No flame Incorrect /missing BCC
G
Reseat or replace BCC
GGHG
Differential check faulty/
G
Check flow, and return sensors
Flame for 15 seconds
Zero check faulty DHW or CH
G
Check wires to sensors not crossed
G
Check PCB
GGGH
Activate BCC/No flame New BCC
G
Press reset to activate
GGGG
Safety system failure/
Failure of internal self checking system
G
Check PCB
No flame
G Check DHW turbine & lead
HHHH
DHW cold Defective DHW turbine or Diverter valve
G Check Diverter valve & lead
G
Check PCB/X4 connector
G
Check filter in plate heat exchanger
G
Check power supply
HHHH
No light indication Defective power supply
G
Check PCB/X1B connector
G
Check PCB fuse
HHHH
No flame Faulty connector
G
Check PCB/X1A connector
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