Scanning And Resetting The "Service" Display - Viessmann Vitodens 200-W Installation Instructions Manual

Commissioning, inspection, maintenance
Further details regarding the individual steps

Scanning and resetting the "Service" display

The red fault indicator flashes when the
limits set in coding addresses "21" and
"23" have been reached. (Coding
address in group "Boiler" (weather-
compensated control unit) or group 2
(constant temperature control unit).)
Weather-compensated control unit
Display
"Service" and "¸"
Acknowledging a service
Press OK.
Service the appliance.
Note
An acknowledged service message that
was not reset appears again the following
Monday.
After the service has been carried out: Reset the codes
Service menu:
1. Press OK and å simultaneously for
approx. 4 s.
2. "Service functions"
3. "Service reset"
Note
The selected service parameters for
hours run and interval restart at "0".
62
Constant temperature control unit
The specified hours run or the specified
interval with calendar symbol "ý" (sub-
ject to setting) and "¸"
Press OK.
Service the appliance.
Note
An acknowledged service message that
was not reset appears again after
7 days.
Reset code "24:1" in group 2 to "24:0".
Note
The selected service parameters for
hours run and interval restart at "0".
(cont.)