Operating instructions
Manuals
Brands
Viessmann Manuals
Boiler
WS3A
81
82
83
84
85
86
87
88
89
90
Checking
the
fuse
1.
Switch
OFF
the
power
.
2.
Rele ase
the
side
clo sures
and
pivot
the
control
unit
down.
3.
Remove
the
cover
.
4.
Check
the
fuse
F1
(see
connection
and
wiring
diagram).
Repa
irs
(cont.
)
87
T
roubleshoo
ting
5692
619
GB
1
...
...
85
86
87
88
89
...
...
124
