Viessmann F11T, Инструкции по установке и обслуживанию для подрядчиков

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115
Control unit
message System characteristics Cause Measures
F.3 Regulates without return tem-
perature sensor. Lead break, return tem-
perature sensor Check return temperature sensor
(see page 140).
F.4 Regulates without return tem-
perature sensor. Short circuit, return tem-
perature sensor Check return temperature sensor
(see page 140).
F.5 Flow rate not being moni-
tored. Lead break, flow sensor Check plug 33/X6 and cable be-
tween burner control unit and flow
sensor.
Turn the ON/OFF switch off and
back on again.
F.7 No DHW heating Lead break, cylinder tem-
perature sensor Check cylinder temperature sensor
(see page 140).
F.8 No DHW heating Short circuit, cylinder tem-
perature sensor Check cylinder temperature sensor
(see page 140).
F.9 No DHW heating Lead break, outlet temper-
ature sensor DHW Check DHW outlet temperature
sensor (see page 140).
F.10 No DHW heating Short circuit, outlet tem-
perature sensor DHW Check DHW outlet temperature
sensor (see page 140).
F.13 Regulates as if the outside
temperature were 0 °C. Lead break, outside tem-
perature sensor Check outside cylinder tempera-
ture sensor (see page 140).
F.14 Regulates as if the outside
temperature were 0 °C. Short circuit, outside tem-
perature sensor Check outside cylinder tempera-
ture sensor (see page 140).
F.29 Regulates without flow tem-
perature sensor for low loss
header. Lead break, low loss
header sensor Check the low loss header sensor.
F.30 Regulates without flow tem-
perature sensor for low loss
header. Short circuit, low loss
header sensor Check the low loss header sensor.
F.37 Burner locked out
Internal circulation pump off
No room heating and no
DHW heating Lead break
system pressure sensor Check system pressure sensor.
F.38 Burner locked out
Internal circulation pump off
No room heating and no
DHW heating Short circuit
system pressure sensor Check system pressure sensor.
F.49 Burner in a fault state Lead break, flue gas tem-
perature sensor Check flue gas temperature sensor
(see page 140).
Reset device.
F.50 Burner in a fault state Short circuit, flue gas tem-
perature sensor Check flue gas temperature sensor
(see page 140).
Reset device.
F.55 Burner in a fault state Lead break, CO sensor Check CO sensor.
Reset device.
F.56 Burner in a fault state Short circuit, CO sensor Check CO sensor.
Reset device.
F.57 Control mode without room
influence Lead break, room temper-
ature sensor Check external room temperature
sensor of heating circuit or room
temperature sensor of remote con-
trol unit.
Troubleshooting
Fault messages on the gas condensing module/fuel cell module programming unit
5853335
Diagnosis