Function
Key combination
Exit
Page
Temperatures, boiler cod-
ing card, brief scans
K
and
G
approx. 2 s si-
multaneously
Press
d
64
Relay test
K
and
d
approx. 2 s si-
multaneously
Press
d
67
Max. output (heating
mode)
K
and
F
approx. 2 s si-
multaneously
Press
d
16
Operating conditions and
sensors
Press
c
Press
d
68
Service scan
c
(if "Service" flashes)
Press
d
38
Adjusting the display con-
trast
d
and
a
simultaneously;
the display darkens
–
–
d
and
b
simultaneously;
the display becomes light-
er
–
–
Calling up acknowledged
fault messages
d
for approx. 3 s
72
Fault history
G
and
d
approx. 2 s si-
multaneously
Press
d
73
Subscriber check (in con-
junction with LON sys-
tem)
L
and
d
approx. 2 s si-
multaneously
L
and
d
simulta-
neously
37
Emissions test function
"
S
"
Weather-compensated
control unit:
F
and
E
approx. 2 s si-
multaneously
Constant temperature con-
trol unit:
O
and
F
approx. 2 s si-
multaneously
F
and
E
or
O
and
F
simulta-
neously for
approx. 1 s,
alternatively
automatic
after 30 min
–
Coding level 1
K
and
L
approx. 2 s si-
multaneously
K
and
L
approx. 1 s
simulta-
neously
41
Coding level 2
L
and
G
approx. 2 s si-
multaneously
L
and
G
approx. 1 s
simulta-
neously
43
Resetting codes to the
delivered condition
L
and
G
simultaneously
for approx. 2 s; then
e
–
62
Service level overview
63
Service scans
5692
731
GB
Summary of Contents for VITODENS 333-F WS3A
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