116
ID
Message (pri-
ority)
1. Cause
2. Measures
Access right
40
Flow temp.
sens HK2 ("
U
")
1. Short circuit, flow temperature sensor,
heating circuit 2 (mixer circuit)
2. Check the sensor and replace, if
required
Customer
41
Flow temp.
sens HK3 ("
U
")
1. Short circuit, flow temperature sensor,
heating circuit 3 (mixer circuit)
2. Check the sensor and replace, if
required
(see installation instructions KM BUS
mixer)
Customer
43
Flow sens. sys-
tem ("
U
")
1. Short circuit, system flow
2. Check the sensor and replace, if
required
Customer
44
Flow temp.
sens NC ("
U
")
1. Short circuit, flow temperature sensor
NC
2. Check the sensor and replace, if
required
Customer
48
Flow temp.
sens HK2 ("
U
")
1. Break, flow temperature sensor, heat-
ing circuit 2
2. Check the sensor and replace, if
required
Customer
49
Flow temp.
sens HK3 ("
U
")
1. Break, flow temperature sensor, heat-
ing circuit 3
2. Check the sensor and replace, if
required
(see installation instructions KM BUS
mixer)
Customer
4B
Flow sens. sys-
tem ("
U
")
1. Break, system flow
2. Check the sensor and replace, if
required
Customer
4C
Flow temp.
sens NC ("
U
")
1. Break, flow temperature sensor NC
2. Check the sensor and replace, if
required
Customer
50
DHW sens. Top
("
U
")
1. Short circuit, DHW temperature sensor,
top
2. Check the sensor and replace, if
required
Customer
Troubleshooting
Control unit diagnostics
(cont.)
5368 522 UAE
Содержание Vitocal 300-G BW
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