Buderus 24C Servicing Manual page 46

3 Troubleshooting
B
Fig. 43 Continued malfunction: No heating operation, despite request for activation and display message indicating that system is ready for use
Subject to modifications resulting from technical improvements!
46 Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
A
Check all plug-in connections on UBA and
all plug-in connections in general
Connection plug
and plug-in con-
nections OK?
Yes
Replace UBA (page 50) or contact
Buderus Customer Service
Use the corresponding flow diagram
to diagnose and correct the fault
No
Correct contact malfunction
"reset"
Yes
New fault warning
message?
Fit the casing
(page 48)
600 Series
11S / 19S / 24S / 24C
Buderus Ltd. • http://www.buderus-domestic.co.uk
No
OK