Troubleshooting
3
Subject to modifications resulting from technical improvements!
Buderus Ltd. • http://www.buderus-domestic.co.uk
46
Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
Fig. 43
Continued malfunction: No heating operation, despite request for activation and display message indicating that system is ready for use
Yes
"reset"
No
Yes
Fit the casing
600 Series
11S / 19S / 24S / 24C
OK
Correct contact malfunction
Check all plug-in connections on UBA and
all plug-in connections in general
Replace UBA (page 50) or contact
Buderus Customer Service
A
No
Use the corresponding flow diagram
to diagnose and correct the fault
New fault warning
message?
B
Connection plug
and plug-in con-
nections OK?
