Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 99
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Also See for VITOLIGNO 300-C:
- Installation and service instructions manual (200 pages) ,
- Installation and service instructions for contractors (132 pages) ,
- Operating instructions for the system user (57 pages)
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Vitoligno 300-C Installation/Service
Fault Display
(continued)
Fault codes
Fault code displayed
49
51
52
53
54
55
56
57
58
61
62
63
64
65
66
67
68
8A
System characteristics
No values from the external
solar system
No control mode at heating
circuit 1 (KM-BUS)
No control mode at heating
circuit 2 (KM-BUS)
No control mode at heating
circuit 3 (KM-BUS)
No DHW heating
No flow control
No solar yield
No solar yield
No control mode at heating
circuit 4 (KM-BUS)
No control mode at heating
circuit 1 (KM-BUS)
No control mode at heating
circuit 2 (KM-BUS)
No control mode at heating
circuit 3 (KM-BUS)
No DHW heating
No flow control
No solar yield
No solar yield
No control mode at heating
circuit 4 (KM-BUS)
Burner blocked
Cause
The KM-Bus connection to
the vitosolic is broken
Short circuit, supply
temperature sensor, heating
circuit 1 (KM-BUS)
Short circuit, supply
temperature sensor, heating
circuit 2 (KM-BUS)
Short circuit, supply
temperature sensor, heating
circuit 3 (KM-BUS)
Short circuit, tank
temperature sensor
Short circuit, DHW return
temperature sensor
Short circuit, collector
temperature sensor
Check collector temperature
sensor.
Short circuit, supply
temperature sensor
Lead break, supply
temperature sensor, heating
circuit 1 (KM-BUS)
Lead break, supply
temperature sensor, heating
circuit 2 (KM-BUS)
Lead break, supply
temperature sensor, heating
circuit 3 (KM-BUS)
Lead break, tank
temperature sensor
Lead break, DHW return
temperature sensor
Lead break, collector
temperature sensor
Lead break, solar reference
sensor
Lead break, supply
temperature sensor
Flue gas temperature in
load operation too low
Troubleshooting
Measures
Check KM-Bus connection
to the vitosolic
Check supply temperature
sensor,
heating circuit 1.
Check supply temperature
sensor, heating circuit 2.
Check supply temperature
sensor, heating circuit 3.
Check tank temperature
sensor
Check return temperature
sensor.
Check collector temperature
sensor.
Check solar reference
sensor.
Check supply temperature
sensor.
Check supply temperature
sensor, heating circuit 1.
Check supply temperature
sensor, heating circuit 2.
Check supply temperature
sensor, heating circuit 3.
Check tank temperature
sensor.
Check return temperature
sensor.
Check collector temperature
sensor.
Check solar reference
sensor.
Check supply temperature
sensor.
Check position of ash
box and install correctly if
necessary.
99
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