C5 Power-Off" Appears On The Display - Viessmann vitocal 300-g Operating Instructions Manual

No display
Cause
Power failure/fault in the power supply
Fuse dropped out/blown
The appliance was switched OFF at the
system ON/OFF switch
"¸ C5 power-OFF" appears on the display
Cause
This is not a fault.
This text is displayed during a power
interruption by your power supply utility
(see also page 7)
A message symbol flashes on the display: "U", "¸" or "!"
Cause
Messages on the heating system
Remedy
The equipment starts automatically, as
soon as power is restored or the fault is
removed
Notify your local contractor
Starting the appliance (see page 16)
Remedy
The heat pump restarts automatically in
accordance with the selected operating
mode as soon as the power supply utility
restores the power supply.
Remedy
Scan the type of message (see page 50)
and notify your local heating contractor
What to do if...
53