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3062547_201802
39 Troubleshooting
Any faults will be displayed as fault codes by Wolf controllers with eBUS capability. Cause and remedy may be allocated to these
faults using 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
HLSC excess temp.
The flow temperature has exceeded 110 °C
Test heating circuit pump,
vent system press reset button,
clean heat exchanger
4
None
flame established
No flame at burner start
Inspection window for flame monitor/mixer head
contaminated
Faulty flame monitor
Air in oil line
Negative pressure at oil pump too high,
max. 0.3 bar
Overpressure at oil pump too high, max. 0.5 bar
Boiler contaminated
Check oil line,
if necessary check fuel level,
check ignition electrode and ignition
transformer,
press reset
Check inspection window for flame
monitor/mixer head
Check flame monitor and lead
Check that the condensate can drain
off freely
Service required
5
Flame failure during
operation
Negative pressure on the oil pump is too high,
max. 0.3 bar flue gas return system (flue gas in
the supply air)
Boiler contaminated
Check CO
2
values,
check flame monitor and lead,
press reset, check flue system for
leaks, service required
6
Temperature limiter -
excess temperature
The flow has exceeded the limit of the
temperature limiter (100 °C)
Vent the system,
check the heating circuit pump
7
Flue gas sensor, excess
temperature
The flue gas temperature
has exceeded 120 °C
Clean the heat exchanger,
Check whether all displacement
devices are installed,
check the flow through the boiler
Check if flow and return are properly
connected
Press reset button.
8
Flue gas/supply air
damper does not
respond
Flue gas/ventilation air damper contact (E1)
fails to close or open when there is a demand
Check flue gas/ventilation air damper
and wiring
11
External light
recognition
A flame is recognised before the burner starts
Press reset
Check oil pump solenoid valve
12
Boiler sensor faulty
Faulty boiler sensor or lead
Check sensor
and lead
14
Faulty cylinder sensor
SF
Faulty cylinder sensor or lead
Check sensor
and lead
15
Outside temperature
sensor faulty
Faulty outside temperature sensor or lead
Check sensor and lead
25
Fan fault
The fan does not reach the set speed
Boiler contaminated
Check supply to the fan
Check fan
Check that the condensate can drain
off freely
Check balanced flue system press reset
Service required
26
Fan fault
The fan does not stop
Check power cable to fan
Check fan Press reset
27
Faulty stratification
sensor
Faulty stratification cylinder sensor or lead
Check sensor and lead
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