Buderus 24C Servicing Manual page 45

Troubleshooting
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
Configuration OK?
Remove the casing
(page 48)
Check control-unit connection to UBA
(page 66)
Connections in
UBA OK?
Connections at the
ERC/RC OK?
Replace lead or control unit
Still no heating
operation?
page 46
Fig. 42 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!
Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
No
Yes
No
Yes
A
Adjust settings and press "reset"
Configure connections correctly
Fit the casing
(page 48)
600 Series
11S / 19S / 24S / 24C
OK
Buderus Ltd. • http://www.buderus-domestic.co.uk
3
45