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
45
Fig. 42
Malfunction: No heating operation, despite request for activation and display message indicating that system is ready for use
Yes
Configure connections correctly
A
No
No
Yes
Configuration OK?
Check control-unit connection to UBA
Connections in
UBA OK?
Fit the casing
600 Series
11S / 19S / 24S / 24C
OK
Adjust settings and press "reset"
No heating operation, despite request for
activation and display message indicating that
system is ready for use
Check control-unit configuration and
wiring connections to unit
Remove the casing
Connections at the
ERC/RC OK?
Replace lead or control unit
Still no heating
operation?
