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13. Induced draught fan cannot reach target
rotation speed (15)
Cause:
The induced draught fan is not running at
the correct rotation speed
The following circumstances might lead to this:
Induced draught fan defective
Connection cable from the rotation speed
sensor (Hallsensor) is broken or poor
contact in the connector on this
connection cable
Electricity supply to the fan motor
interrupted
Correction:
Contact the service engineer
14. No connection to the boiler board Check
cable (17)
Cause:
The connection between the central unit
and the operator console is interrupted.
The following circumstances might lead to this:
Connection cable is not connected to the
operator console or to the central unit
Connection cable is damaged
Correction:
Check that the connection cable is
connected to both units, the operator
console and the central unit.
Contact the service engineer
15. Shutdown after power cut (18)
Cause:
A safety shutdown was triggered after a
power cut
Correction:
Clear the fault on the operator console
and restart the device
16. Bottom flame temp. sensor 2 interruption
( 24 )
Cause:
Bottom flame temperature sensor
defective or not connected
Correction:
Contact the service engineer
17. Safety shutdown tolerance variation,
flame temperature ( 26 )
Cause:
Burner dirty, pellets have low calorific
value.
No pellets present
Correction:
Clean burner, if necessary change pellet
type
Refill pellets
18. Bottom flame temperature TFL max.
exceeded ( 27 )
Cause:
Burner dirty
Correction:
Clean burner
19. “Clean combustion chamber” function
instruction
The display on the operator console starts flashing.
(The backlighting switches on and off and the
“Clean combustion chamber” instruction appears).
The instruction to clean the combustion chamber
refers not just to the cleaning of the burner but also
to the cleaning of the entire combustion chamber
with an ash vacuum cleaner.
The process of the “Clean combustion chamber”
function looks like this:
The entire combustion chamber is to be cleaned
with an ash vacuum cleaner at intervals of no
longer than 50 operating hours.
The number of operating hours is measured within
the control unit during Heating mode. After 50
operating hours, the display on the operator
console starts flashing. This flashing is an
instruction not to defer cleaning the combustion
chamber beyond this time. However, this
instruction to clean the combustion chamber
(display flashing) does not trigger an error
message during Heating mode. But after the
display has started flashing, if the stove switches
back to “Standby mode, the stove can no longer
be automatically ignited before the combustion
chamber has been cleaned.
To clean the combustion chamber, the stove has to
be switched to “Off” operating status.
If the combustion chamber is now cleaned, then
the “Clean combustion chamber” error message
will thereafter be cleared automatically. A
precondition for the automatic clearance of this
error message is that the combustion chamber
door is open for longer than 60 seconds in “Off”
operating status. This time is required for cleaning
the combustion chamber including the burner
thoroughly with an ash vacuum cleaner.
If the door is open longer than 60 seconds in “Off”
operating status, then the operating hours
counter, which is responsible for the “Clean
24


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