Viessmann OpenTherm - Troubleshooting; Room Temperature Problems

31
Cause Remedy
The room temperature controller is in-
correctly set.
Check the settings and correct if re-
quired:
■ Program
■ Room temperature
■ Time
Note
For further causes, see the boiler oper-
ating instructions
Rooms are too hot
Cause Remedy
The room temperature controller is in-
correctly set.
Check the settings and correct if re-
quired:
■ Program
■ Room temperature
■ Time
Note
For further causes, see the boiler oper-
ating instructions
What to do if...
Rooms are too cold
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