13
If the heating system is due for a service, the sym-
bol flashes on the display and "Service" is shown.
Call up the submenu with the OK key to acknowledge
all current service messages.
Further information on the pending service:
Control unit installation and service instructions
Fault display
In the event of a fault, the symbol flashes on the dis-
play and "Fault" is shown.
Call up the submenu with the OK key to acknowledge
all current fault messages.
The exact fault code is only shown on the display of
the control unit.
Meaning of the fault codes:
Control unit installation and service instructions
Acknowledging a fault
Follow the instructions on the display. Note
Any connected alarm is switched off.
If an acknowledged fault is not remedied, the fault
message is redisplayed the following day and the
alarm is switched on.
Calling up acknowledged fault messages
An acknowledged fault message can only be called up
at the control unit of the heat generator.
Control unit installation and service instructions
Troubleshooting
Service indication
5839309
Diagnosis
To Next Page
