Wolf CGB-35, Руководство по установке

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Troubleshooting
All faults will be displayed as a fault code by Wolf controllers with eBUS capability. To these faults, cause and remedy may be allo -
cated by means of the following table. This table is designed to allow your local heating contractor to trace the fault more easily.
Fault
code
Fault Cause Remedy
1 TBV Excess temperature
Water pressure too low
The flow temperature has exceeded the limit for
TBV shutdown.
Heat exchanger severely contaminated.
Water pressure switch trips at < 1.0 bar pressure
Check system pressure/heatingcircuit
pump. Check the HC pump step switch.
Vent the heating system. Press the reset
button. Clean the heat exchanger.
Check TB combustion chamber. Increase
system pressure.
4 No flame is established No flame established during the burner start. Check the gas supply pipe and open the
gas shut-off valve, if necessary. Check
the ignition electrode and cable. Press
the reset button.
5 Flame failure during
operation
Flame failure within 15 s after flame recognition. Check CO
2
values.
Check ionisation electrode and cable.
Press the reset button.
6 DHW excess tempera -
ture
The flow/return temperature has exceeded the
limit for TW shutdown.
Check system pressure.
Vent the heating system.
Set the pump to stage 2 or 3.
7 TBA excess temperature
Positive pressure in the
flue gas system
The flue gas temperature has exceeded the limit
for TBA shutdown.
Flue gas system blocked. Ventilation air system
blocked
Check for correct installation of combusti -
on chamber pot.
Check flue gas system. Check ventilation
air system.
11 False Flame signal A flame is recognised before the burner starts. Press the reset button.
12 Flow sensor faulty
Gas pressure too low
Flow temperature sensor or lead faulty.
Gas pressure < value set at the gas pressure
switch (only displayed after 15 min).
Check lead.
Check the flow sensor.
Check gas pressure. Check gas pressure
switch (accessory).
14 Cylinder sensor faulty DHW temperature sensor or lead faulty. Check sensor and lead.
15 Outside temp. Outside temperature sensor or lead faulty. Check lead.
Check the outside temperature sensor.
16 Return sensor faulty Return temperature sensor or lead faulty. Check lead.
Replace the return sensor.
20 Gas valve „1“ fault A flame is recognised 15 s after burner operati -
on, even if gas valve 1 has received a shutdown
command.
Replace the gas combination valve.
21 Gas valve „2“ fault A flame is recognised 15 s after burner operati -
on, even if gas valve 2 has received a shutdown
command.
Replace the gas combination valve.
24 Gas fan fault The gas fan does not reach the required pre-
purging speed.
Check the gas fan supply cable and gas
fan. Press the reset button.
25 Gas fan fault The gas fan does not reach the ignition speed. Check the gas fan supply cable and gas
fan. Press the reset button.
26 Gas fan fault The gas fan does not stop. Check the gas fan supply cable and the
gas fan. Press the reset button.
30 CRC fault gas fired The EEPROM record „Gas fired condensing
boiler“ is
Switch the power supply OFF and ON; if
unsuccessful, replace the control PCB.
31 CRC fault burner The EEPROM record „Boiler“ is invalid. Switch the power supply OFF and ON; if
unsuccessful, replace the control PCB.
32 Fault in the 24 VAC
supply
24 V AC supply outside the permissible range
(e.g. short circuit).
Check the three-way valve.
Check the gas fan.
33 CRC defaul values fault The EEPROM record „Master reset“ is invalid. Replace the control PCB.