Service Scans; Service Level Overview - Viessmann VITODENS 200-W Service Instructions Manual

Service level overview

Function
Temperatures, boiler cod-
ing card and brief scans
Relay test
Max. output (heating
mode)
Operating conditions and
sensors
Service scan
Adjusting the display con-
trast
Calling up acknowledged
fault messages
Fault history
Subscriber check (in con-
junction with LON)
Emissions test function
"S"
Coding level 1
Plain text display
Coding level 2
Numerical display
Key combination
Press K and G simulta-
neously for approx. 2 s
Press K and d simulta-
neously for approx. 2 s
Press K and F simulta-
neously for approx. 2 s
Press c
c (if "Service" flashes)
Press d and asimulta-
multaneously; the display
darkens
Press d and b simulta-
neously; the display be-
comes lighter
Press d for approx. 3 s
Press G and d simulta-
neously for approx. 2 s
Press L and d simulta-
neously for approx. 2 s
Weather-compensated
control unit:
Press F and E for ap-
prox. 2 s simultaneously
Constant temperature con-
trol unit:
Press O and F for ap-
prox. 2 s simultaneously
Press K and L simulta-
neously for approx. 2 s
Press L and G simulta-
neously for approx. 2 s

Service scans

Exit Page
Press d 62
Press d 65
Press d 15
Press d 66
Press d 35
70
Press d 71
Press L 34
and d si-
multaneous-
ly
F and E
or O and
F simulta-
neously for
approx. 1 s,
alternatively
automatic
after 30 min
Press K 37
and L si-
multaneous-
ly for approx.
1 s
Press L 40
and G si-
multaneous-
ly for approx.
1 s
61