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4. Error Codes
Error indication Cause Remedy
LED L4 (Filter condition) Poor filter condition
Not enough suction
Check suction and exhaust
air lines. Contact service
fast flashing the set minimum air volume
is no longer reached, or the
motor does not run
permanent the technically minimum
required air volume is not
reached
LED L5 (Service) Dust container lowered or
motor/motor-control
malfunction
Check if the container lever
is in upper position.
Restart the unit with the
mains switch
LED L4 and L5
(Filter-Service)
Dust container timer expired
or
filter cleaning in process
Check the dust container or
wait until the filter cleaning
is finished.
Alternate flashing
(only in "Cleaning mode"=
suction off)
Filter cleaning is required
and will be performed during
the next break.
If possible, interrupt work
temporarily
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