Troubleshooting
3
Subject to modifications resulting from technical improvements!
Buderus Ltd. • http://www.buderus-domestic.co.uk
Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
37
Fig. 34
Fault warning message 9A (with any character except P): System error
Yes, on second or
third attempt to
start up
System error
9
Yes,
on fourth
attempt to
start up
No
"reset"
600 Series
11S / 19S / 24S / 24C
OK
System error
E
Any charac-
ter, except
P
A
B
Use the corresponding flow diagram
to diagnose and deal with the fault
Yes
New fault warning
message
9A?
Other fault
warning message?
