Boiler Water Temperature Has Reached 95 °C - Viessmann VITOLIGNO 300-H Operating Instructions For The System User

Boiler operation
Action in case of overheating
Note
If the boiler overheats again after a short
time or overheats regularly, notify your
heating contractor.
Boiler water temperature has reached 95 °C
High limit safety cut-out
The reset button of high limit safety cut-
out A is located behind the boiler cas-
ing.
Triggering the function
When the boiler water temperature
exceeds 95 °C the high limit safety cut-
out responds.
Note
The high limit safety cut-out can only be
reset manually.
14
(cont.)
Cancelling the function
Note
The high limit safety cut-out can only be
reset (unlocked) once the boiler water
temperature is approx. 70 °C.
Check or let your heating contractor
check that the thermally activated safety
valve has reset after every triggering of
the high limit safety cut-out.