29
Maintenance
6005044_0 – 04.12.2019
EN
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 mains cable is connected on both
sides.
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
“4.2.1 Normal operation” (page 21).
y
The device is connected to a window contact switch and
the window is closed.
☞
Open the window.
y
The device is connected to a safety device. The safety
device detects a critical under-pressure.
☞
Open a window.
☞
Wait until the air pressure returns to normal.
The lighting does not work.
y
The device software requires a restart.
☞
Interrupt the power supply for approx. 10 seconds.
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
“6.2.2 Replacing filter filling (with recirculating and
hybrid mode)” (page 27).
Poor device performance.
y
The recirculated air filter is clogged.
☞
Replace the filter filling of the recirculated air filter.
D
“6.2.2 Replacing filter filling (with recirculating and
hybrid mode)” (page 27).
y
The hybrid filter is clogged.
☞
Replace the filter filling of the hybrid filter.
D
“6.2.2 Replacing filter filling (with recirculating and
hybrid mode)” (page 27).
y
The exhaust pipe was not properly connected or installed.
☞
Please consult your dealer or customer services.
Control panel does not react after being touched several times.
y
The control panel is soiled.
☞
Clean the control panel.
D
y
The device software requires a restart.
☞
Interrupt the power supply for approx. 10 seconds.
Moisture in the device.
y
Dripping or splashing water has penetrated the device.
y
Liquid (e.g. from vases, bottles on the device) has
penetrated the device.
☞
Immediately shut off the power supply, by removing
the fuse.
☞
Make sure that the power supply cannot be
unintentionally reconnected. For example by tasking
a person with ensuring that the fuse/breaker is not
restored/switched on.
☞
Ensure that no more liquid can penetrate the device.
☞
Allow the device to dry.
☞
Have the device checked and repaired by qualified,
specialist personnel prior to using the device again.
If a fault persists:
☞
Please consult your dealer or customer services.
Summary of Contents for BKH 120 FO
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