The Dhw Is Too Hot; Fault" Is Shown On The Display; Service" Is Displayed; Remote Control" Is Shown On The Display - Viessmann VITOLIGNO 300-P Operating Instructions Manual

There is no hot water
Cause
No fuel
Control unit fault:
"Fault" is displayed and the red fault
indicator flashes (see page 47)
Circulation pump for cylinder heating
faulty

The DHW is too hot

Cause
Control unit incorrectly adjusted
Sensor fault

"Fault" is shown on the display

Cause
Heating system fault

"Service" is displayed

Cause
The maintenance interval has expired.

"Remote control" is shown on the display

Cause
A remote control is connected for the
heating circuit.
(cont.)
Remedy
See page 49.
Check the type of fault (see page 48) and
notify your local heating contractor.
Contact your local heating contractor.
Remedy
Check and correct the DHW temperature,
if required (see page 28).
Contact your local heating contractor.
Remedy
Check the type of fault (see page 48) and
notify your local heating contractor.
Remedy
Arrange a service with your local heating
contractor.
Remedy
Make adjustments or carry out scanning
at the remote control (see separate
operating instructions).
What to do if...
51