Service level summary
Function
Temperatures, boiler cod-
ing card and brief scans
Relay test
Max. output (heating
mode)
Operating condition
Maintenance scan
Adjusting the display con-
trast
Error history
User check (in conjunc-
tion with LON system)
Emissions test function
S
Coding level 1
Plain text display
Coding level 2
Numerical display
Max. output in heating
mode
Key combination
Press K and G simulta-
neously for approx. 2 sec-
onds
Press K and d simulta-
neously for approx. 2 sec-
onds
Press K and F simulta-
neously for approx. 2 sec-
onds
Press c
c (if "Maintenance"
flashes)
Press d and b simulta-
neously; display darkens
Press d and a simulta-
neously; display becomes
lighter
Press G and d simulta-
neously for approx. 2 sec-
onds
Press L and d simulta-
neously for approx. 2 sec-
onds
Press F and E simulta-
neously for approx. 2 sec-
onds
Press K and L simulta-
neously for approx. 2 sec-
onds
Press L and G simulta-
neously for approx. 2 sec-
onds
Press K and F simulta-
neously for approx. 2 sec-
onds
Service scans
Exit
Page
Press d
64
Press d
68
Press d
18
Press c
69
Press d
37
–
–
–
–
–
–
–
–
Press F
–
and E
simulta-
neously
Press K
39
and L
simulta-
neously
Press L
42
and G
simulta-
neously
Press K
18
and F
simulta-
neously
63