5
Status and error messages
The
symbol is shown in the display
a) An appliance requires maintenance.
Contact your expert technician.
b) The display shows the expert technician operation
level.
a
Attention!
Never change the settings. This could impair the
function of your heating system.
h
Note
The display changes to the basic display
automatically after five minutes.
The
symbol is shown in the display
The appliance has developed a fault.
Contact your heating engineer.
Operating manual VR 81 0020044392_00 VR 81 0020044392_00
Status and error messages 5
"Err" appears in the display:
Fig. 5.1 Error message
The VR 81 remote control unit has developed a fault or a
communication error has occurred on the eBUS.
Contact your heating engineer.
13