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
39
Fig. 36
Fault warning message 9F,H,P: System error (UBA defective), or KIM defective
Flashing
Timer error (UBA defective)
F,H,P
9
At second
attempt
No
"reset"
600 Series
11S / 19S / 24S / 24C
OK
B
Use the corresponding flow diagram
to diagnose and deal with the fault
Yes
At third
attempt
B
"reset"
New fault warning
message
9P?
New fault warning
message
9F
or
9H
?
New fault warning
message
9P?
Yes
No
Yes
No