Fault / Cause / Remedy; Troubleshooting - Wolf CGG-1K-24 Installation And Operating Instructions Manual

Any faults will be displayed as fault code by Wolf controllers with eBUS capability. To these faults, cause and remedy may be allocated
using the following table. This table is designed to allow your local heating contractor to trace the fault more easily.
Fault Fault
code
1 TBV excess
temperature
4 None
Flame established
6 TW excess
temperature
11 False flame signal
12 Flow sensor faulty
15 Outside temperature
sensor faulty
22 Lack of air
23 Fault differential
pressure switch
41 Flow
monitoring
45 Fault sensor
Throughput
46 Fault sensor
DHW outlet
temperature
3062087_0207

Troubleshooting

Cause
The flow temperature has exceeded the limit for
TBV shutdown temperature exceeded.
Heat exchanger severely contaminated.
No flame established during the burner start
The flow/return temperature has exceeded
the limit for the TW shutdown temperature.
A flame is recognised before the burner
starts.
The sensor for the flow temperature or
the lead are faulty (sensor 1 or sensor 2).
The sensor for the outside temperature or
the lead is faulty.
No differential pressure switch ON.
Differential pressure switch does not
switch OFF.
Flow temperature 2, flow temperature 1 > 12 K
Excessive temperature change
Lead or sensor faulty or not
connected
Lead or sensor faulty or not
connected
Remedy
Check the system pressure. Check the heating
circuit pump. Check the step switch of the
HC pump. Vent the heating system. Press
the reset button. Clean the heat exchanger.
Check the gas supply pipe and open the gas
tap, if necessary. Check the ignition electrode
and ignition cable. Press the reset button.
Check the system pressure. Vent the system.
Set the pump to stage 2 or 3.
Press the reset button.
Check the lead.
Check the flow sensor.
Check the lead.
Check the outside temperature sensor.
Press the reset button; check the silicone
hoses to the differential pressure switch.
Check the flue gas system and gas fan.
Check the differential pressure switch.
Press the reset button. Replace the
differential pressure switch, if required.
Vent the heating system, check the system
pressure. Check the heating circuit pump.
Check the lead and and replace the sensor,
if required.
Check the lead and and replace the sensor,
if required.
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