72
Deleting messages
1.
and
OK
– press simultaneously for approx. 4 s,
then release.
2. "Message history"
3. OK
4.
Use
/
to select
"Delete messages"
.
5. OK
6. OK
to confirm the message.
Overview of electronics modules
C
A
B
Fig. 48
A
HMI programming unit
B
BCU burner control unit
C
HMU heat management unit
Troubleshooting
Fault display on the programming unit
(cont.)
6130884
Service
