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7.3 Troubleshooting
Fault
Green illuminated ring
around the on/off switch
does not light up
Product does not start
Display message:
Maintenance due
Display message:
Frequency inverter fault
Display message:
Regulation faulty
Display message:
Extraction capacity too
low
Control display:
Date/time is not
displayed correctly
Control display:
Mobile wireless
connection status
indicator lights up red
Dust particles escape
from the clean air side
1502778-02
Cause
No power supply
available
No power supply
available
Product maintenance is
due
The frequency converter
has a fault
Volume flow control
does not work
Filter inserts saturated
No mobile wireless
connection available
No mobile wireless
connection available
Filter inserts damaged
Tab. 21: Troubleshooting
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Note
Have the power
supply checked by a
qualified electrician
Have the power
supply checked by a
qualified electrician
Contact the
manufacturer's
service department
Contact the
manufacturer's
service department
Contact the
manufacturer's
service department
Replace filter inserts
Restart the product.
Check the position of
the mobile wireless
antenna. Check the
mobile network,
change the product
location if necessary
Restart the product.
Check the position of
the mobile wireless
antenna. Check the
mobile network,
change the product
location if necessary
Replace filter inserts
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