88
Maintenance
6002782_b – 14.09.2016
☞
Unscrew the screws on the top of the filter.
☞
Remove the cover.
☞
Empty the filter completely.
☞
Fill the filter with new charcoal up to the maximum level.
☞
Screw the cover back on to the top of the filter.
☞
Clean the filter from the outside (e.g. through extraction
with a vacuum cleaner).
☞
Take hold of the filter at the handles.
☞
Carefully insert the filter again.
☞
Place the cover on the device.
☞
Ensure that the support cable and the mains cable are in
the guide slots and are free to move.
☞
Screw the cover tight again.
☞
Reconnect the device to the power supply.
6.3
Fault rectification
Possible faults are described below:
Description of the fault.
y
Possible cause.
☞
Remedy.
Fan and lighting do not work.
y
No power supply.
☞
Check that the all-pole mains switch is connected.
☞
Switch the mains switch on.
y
The breaker may have been tripped or is defective.
☞
Check to see if the breaker has tripped.
☞
If you use electric circuit breakers, turn the circuit
breaker on again.
☞
For other types of fuse, consult a qualified electrician.
The fan does not work.
y
The device is not switched on.
☞
Check all power levels.
D
“4.3 Normal operation” (page 82).
y
The device is connected to a window contact switch and
the window is closed.
☞
Open the window.
y
The device is connected to an under-pressure monitor.
The under-pressure monitor detects a critical under-
pressure.
☞
Open a window.
☞
Wait until the air pressure returns to normal.
The lighting does not work.
y
The lamp has blown.
☞
Please consult your dealer or customer services.
Smells occur during operation.
y
The filter filling is used up.
☞
Change the filter filling.
D
“6.2.3 Replacing the filter filling (only for BUF-BDL
recirculated air filter)” (page 87).
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