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
25
Fig. 22
Continuation of fault warning message 6A: F1 fuse defective, or no ionisation message after ignition
Yes
A
No
No
No
Yes
Check fuse F1 (page 53)
Fuse OK?
21
Fuse (1.25 AT) should be
replaced
Replace ionization electrode
A
Yes
Ionization
electrode OK?
Fit the casing
"reset"
600 Series
11S / 19S / 24S / 24C
OK
Check hot surface ingitorhot surface
Measure ionisation current
Yes
Replace hot surface ingitor
24
No
hot surface
ingitor OK?
Has fuse
been replaced twice in
quick succession?