Wolf CGS-2-14/120L Installation Instructions Manual page 92

Fault Fault
code
32 23 V AC supply
35 BCC missing
36 BCC faulty
37 Incorrect BCC
38 BCC update required
39 BCC system error
40 Flow monitoring
(pressure increase
check)
41 Flow monitoring (check
sensor)
92
40. Troubleshooting
Possible causes
23 V AC supply outside the permissible
range (e.g. short circuit)
Boiler coding card has been removed or
incorrectly inserted
Burner control unit was replaced and no
boiler coding card inserted
CRC fault, BCC
Boiler coding card fault
The boiler coding card is incompatible
with the GCB-e PCB
Incorrect BCC code
Boiler coding card fault; PCB requires a
new boiler coding card (replacement).
Boiler coding card fault
BCC copy process not started
System pressure increase < 150 mbar
Air in heating circuit
Pressure sensor faulty
Pump faulty
Return temperature > eHLSC
temperature + 12 K, return temperature
> boiler sensor + 12 K
System pressure too low
Air in heating circuit
Pump faulty/low output
Remedy
Power supply unit:
- Switch power supply OFF/ON.
- Press reset button.
- If the fault cannot be acknowledged, call
out a contractor.
Boiler coding card has been removed or
incorrectly inserted.
Insert boiler coding card according to
appliance type.
CRC fault, BCC:
- Replace boiler coding card.
Press reset button.
Use ON/OFF switch.
Boiler coding card incompatible.
Enter BCC code from the type plate correctly.
Insert the correct boiler coding card.
Press reset button and enter contractor code
1111.
Reinsert boiler coding card.
Replace boiler coding card.
Press reset button.
Use ON/OFF switch.
Replace boiler coding card.
Press reset button and enter contractor code
1111.
Check system pressure.
Vent heating circuit.
Pressure sensor:
- Check leads and plug-in connections.
- If OK, replace pressure sensor.
Pump:
- Check if pump is running.
- If not, check cables and plugs.
- If electrical connection OK but no function:
Replace pump.
Press reset button.
Check system pressure.
Vent the system.
Flow monitoring:
- Increase minimum pump speed.
Pump:
- Check if pump is running.
- If not, check cables and plugs.
- If electrical connection OK but no function:
Replace pump.
3064816_201804