Viessmann B0KA, Инструкция по установке и обслуживанию

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61
Displayed fault
code System characteristics Cause Measures
92 Function of the relevant elec-
tronics module in emergency
mode ADIO electronics module
communication error
■
Check setting in the commission-
ing assistant and correct if re-
quired.
■
Check connections and leads to
the ADIO electronics module.
■
Check PlusBus voltage level
(24 to 28 V).
■
Check subscriber number on ro-
tary switch S1 and correct if re-
quired.
95 Burner off OpenTherm remote con-
trol unit not connected
■
Check connection to the Open-
Therm remote control. unit.
■
If OpenTherm is not required, set
C.7 in the commissioning assis-
tant to a value other than 14.
100 Electronics modules connec-
ted to PlusBus not function-
ing Voltage error PlusBus Check whether the PlusBus power
supply on the HBMU heat manage-
ment unit is OK: Remove all con-
nected PlusBus components and
reconnect one by one.
Check that no more than 1
Vitotrol 200-E is connected to the
HBMU.
Check whether there is a short cir-
cuit at the PlusBus cable.
102 No internet connection Error with communication
module Check cables and plug-in connec-
tions between heat management
unit and communication module.
103 Normal operation Internal communication
error, programming unit Check cables and plug-in connec-
tions between heat management
unit and HMI programming unit.
104 Depending on configuration
of EM-EA1 extension (DIO
electronics module) External fault message in-
put active Check connected external device.
142 Burner in a fault state Communication restriction
on CAN bus INR Check the fan unit for correct func-
tion. For this, check the stepper
motor of the fan unit (reference run
with mains ON).
If the fault persists, check the plug-
in connections and cables of the
CAN bus.
Check further CAN bus subscrib-
ers. If fault occurs repeatedly, re-
place fan unit.
160 Burner in a fault state Communication error,
CAN bus Check connections to CAN bus
subscribers (INR, HBMU).
Check connections to external
CAN bus subscribers.
161 Burner in a fault state HBMU heat management
unit data memory access
fault Reset the appliance.
If the fault occurs repeatedly, re-
place the HBMU heat management
unit. See chapter "Replacing the
HBMU heat management unit".
Troubleshooting
Fault messages
(cont.)
6173886
Diagnosis