Viessmann Vitodens 333-F Service Instructions Manual page 44

Commissioning, inspection, maintenance
Further details regarding the individual steps
3. d
The service display will be
cleared (for a weather-
compensated control unit:
"Acknowledge: Yes",
reconfirm with d).
The red fault display con-
tinues to flash.
After a service has been carried out
1. Reset code "24:1" to "24:0".
The red fault indicator extin-
guishes.
Note
If coding address "24" is not reset,
the "Service" message reappears:
& On a constant temperature con-
trol unit:
After 24 hours
& On a weather-compensated con-
trol unit:
At 07:00 h on Monday
44
(cont.)
Note
An acknowledged service message
can be redisplayed by pressing d
(approx. 3 s).
2. Reset the burner hours run, burner
starts and consumption, if required.
Press the following keys:
c
Scanning is active.
a/b for the selected value.
e
The selected value will be
set to "0".
a/b for further scans.
d
Scanning is completed.