25
Maintaining the heating technology
7.2
Useful hints in the event of faults
Fault
Cause
Remedy
Chapter
Vitroceramic window
seriously sooted
Wood too damp
Use logs with a max. residual moisture content of 20 % (recommended 15 %).
3.3
Wrong fuel
Only use the fuels recommended in these instructions.
3.1/3.2
Wood logs too large
Use the size of logs recommended in the instructions. Split logs that are too
large if necessary. Do not use round logs.
3.3/12.
Too little wood used
Use the recommended quantity of wood, especially with a cold start.
12.
Weather
Fill the firebox with less fuel, but use sufficient kindling.
5.8
Combustion air setting
Check whether the “combustion air” lever is in the recommended position.
5.5
Chimney required draught
The required delivery pressure is 12 Pa. The required draught is affected by the
weather. If the problem persists, inform your technician/chimney sweep or
installer.
5.7/5.8
More than one fireplace con-
nected to the same chimney
Check that the door and air control device of other fireplaces connected to the
same chimney are closed.
1.8.5
Fault
Cause
Remedy
Chapter
Fire burns poorly or is
hard to ignite
Wood too damp
Use logs with a max. residual moisture content of 20 % (recommended 15 %).
3.3
Wrong fuel
Only use the fuels recommended in these instructions.
3.1/3.2
Wood logs too large
Use the size of logs recommended in the instructions. Split logs that are too
large if necessary. Do not use round logs.
3.3/12.
Too little wood used
Use the recommended quantity of wood, especially with a cold start.
12.
Wood lit from below
Ignite the wood from above as per these instructions.
5.3/5.4
Weather
Fill the firebox with less fuel, but use sufficient kindling.
5.8
Combustion air setting
Check whether the “combustion air” lever is in the fully open position.
5.5
Combustion air from the
room
Open the window and switch off any extraction system.
1.8.5/5.1
External combustion air
Check the combustion air conduit and clean if necessary.
Chimney required draught
too low
Light a pilot fire in the chimney and ask your technician/chimney sweep or
installer for advice.
Chimney blocked
Inform your technician/chimney sweep.
More than one fireplace con-
nected to the same chimney
Check that the door and air control device of other fireplaces connected to the
same chimney are closed.
1.8.5
Flue gas throttle flap
Open throttle flap, if fitted.
Fault
Cause
Remedy
Chapter
Smoke escapes when
fuel is added
Wood added too soon
Only add new fuel at the embers stage.
5.5.3
Quick opening of the door
Slowly open the door a small way, wait until the flow of air has increased, then
continue to open it as far as necessary to add wood.
5.5.2
Under draught in the location
of the fireplace
Open the window and switch off any extraction system.
1.8.3/5.2
Chimney blocked
Inform your technician/chimney sweep.
Flue gas throttle flap
Open throttle flap, if fitted.
Fault
Cause
Remedy
Chapter
Fire burning too
strongly
Wood too dry
Use logs with a max. residual moisture content of 20 % (recommended 15 %).
3.3
Wrong fuel
Only use the fuels recommended in these instructions.
3.1/3.2
Wood logs too small
Use the size of logs recommended in the instructions. Split logs that are too
large if necessary. Do not use round logs.
3.3/12.
Too large a quantity of wood
Use the recommended amount of wood.
12.
Combustion air setting
Check whether the “combustion air” lever is in the recommended position.
5.5
Chimney required draught
too high
The required delivery pressure is 12 Pa. Inform your technician/chimney sweep
or installer.
5.8/12.
Flue gas throttle flap
Close throttle flap, if fitted.
