Viessmann B0KA - Fault Messages; Overview of Electronics Modules

57
A
B
Fig. 39
A
HBMU heat management unit
B
Programming unit with TCU 100 communication
module
Fault messages
Note
For diagnostics and troubleshooting, see chapter
"Repairs".
Fault messages dependent on appliance equipment
level
Troubleshooting
Overview of electronics modules
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Diagnosis