Problem
Possible cause
Possible solution
The glass becomes black
The combustion chamber is
not hot enough
•
Use the recommended amount
of fuel. Refer to section
•
Increase the amount of com-
bustion air with the control lev-
er. Refer to section
The moisture content of the
wood logs is too high
•
Use dried wood logs with a
moisture content of 10 - 20 %.
•
Use wood briquettes
The seal around the door is
damaged
Contact your dealer.
The convection ventilator
makes unusual noise
The convection ventilator is
defect
Contact your dealer
The convection air outlets show
a grey discoloration
Household particles (for ex-
ample from pets, clothing,
cigarettes, candles) flow via
the convection air inlet
alongside the hot appliance.
The particles burn when in
contact with the hot appli-
ance. The residual black
particles flow via the con-
vection air outlet to the
room.
•
Make sure that you daily clean
the surround of the convection
air inlet.
•
Remove the air inlet and air
outlet grates and clean the
grates. Put the grates back af-
ter cleaning.
•
Make sure the room is suffi-
cient ventilated
•
Avoid as much as possible the
presence of household parti-
cles. It is recommended to use
a vacuum cleaner every day.
9.2
Troubleshooting on Opti-Air system
Problem
Possible cause
Possible solution
The combustion mode does not
change to
Burning
after "Firing
Up".
The amount of fuel is insuffi-
cient during
Firing up
.
Do the recommended ignition pro-
cedure. Refer to section
Contact your dealer if the problem
stays.
The combustion mode changes
to
Cooling down
after "Firing
Up".
The amount of fuel is insuffi-
cient during
Firing up
.
Do the recommended ignition pro-
cedure. Refer to section
Contact your dealer if the problem
stays.
The combustion mode does not
change to
Burning
after
Refill
.
The amount of fuel is insuffi-
cient.
Use the recommended amount of
fuel. Refer to section
section
Notification
Sensor error
in the
app.
Defect of one of the sen-
sors.
Contact your dealer.
Troubleshooting
28
Cuatro-7 75-60
