Is Flashing And "Note" Is Displayed - Viessmann VITOTRONIC 200 Operating Instructions Manual

"

" is flashing and "Note" is displayed

Cause
Reference to a special event or operating state of the
heat pump or heating system.
" " is flashing and "Warning" is displayed
Cause
Warning due to a specific event or operating state of
the heat pump or heating system.
" " is flashing and "Fault" is displayed
Cause
Heat pump or heating system fault.
"Power-OFF C5" is displayed
Cause
This message is displayed whilst the power supply is
blocked by the power supply utility.
"Controls locked out" is displayed
Cause
This function is blocked.
"Check filter" is displayed
Cause
The filters in your ventilation unit and in your exhaust
■
air valves are severely contaminated.
The last filter change was more than 12 months ago.
■
Doors/windows can only be opened with difficulty
Cause
In highly airtight buildings, for example a passive
house:
Air flow rates of your ventilation unit for supply air and
extract air are out of balance.
Remedy
Proceed as described on page 41.
Remedy
Proceed as described on page 41.
Remedy
Proceed as described on page 41.
Remedy
No action required.
The heat pump restarts automatically with the selected
operating program as soon as the power supply utility
restores the power supply.
Remedy
Your heating contractor can lift this block.
Remedy
Change the filters (see from page 51).
Remedy
Inform your local heating contractor.
What to do if...
47