Buderus 24C Servicing Manual page 16

3 Troubleshooting
page 15
18
Open the heat exchanger and
burner, as indicated in the installation
and servicing instructions, and check
for dirt
Are the heat exchang-
er and burner soiled?
No
Shut the heat exchanger and burner
A
page 46
Fig. 13 Continuation of fault warning message 4C: F2 fuse malfunction, or exhaust-gas sensor tripped
Subject to modifications resulting from technical improvements!
16 Servicing manual for wall-mounted condensing gas boiler 600 Series 11S/19S/24S/24C • Issued 02/2006
Clean the heat exchanger
Yes
and burner, as indicated in
the installation and servicing
instructions
page 15
19
"reset"
Fit the casing
(page 48)
600 Series
11S / 19S / 24S / 24C
OK
Buderus Ltd. • http://www.buderus-domestic.co.uk
page 15
20