FAQ - English
For information on operating elements, see
For chapter indications, refer to the complete instruction manual on the internet.
Trouble
Error notification dis-
• The electronics have overheated.
play (26,
Fig.
2) flashes.
The error notification
• The fine filter is so heavily clogged that
display (26,
Fig.
2)
lights up.
The suction power is
• Blockage or leakage in the suction
not sufficient.
• Dust drawer not airtight.
• Fine filter blocked.
Dust drawer is over-
• The selected time interval for emptying
flowing.
The signal to empty the
• The time interval set for emptying the
dust drawer is output,
even though it is not
full yet.
The display to empty
• The flow rate is no longer sufficient and
the dust drawer flashes
and an acoustic signal
sounds three times.
The extraction unit
• Suction turbine has overheated.
unexpectedly stops
suctioning during con-
tinuous or automatic
operation and the cor-
responding displays
(20/22, Fig. 2) remain
on.
• Suction turbine is faulty.
The extraction unit
• The connector to the CAM system or
does not respond to
the signals of the CAM
system.
• Interface cable damaged.
• Connector assignment of the interface
After switching on, not
• The display that does not light up is
all displays light up
briefly.
Cause
cleaning the filter does not have a suffi-
cient impact.
hose.
the dust drawer is too long.
dust drawer is too short.
filter cleaning is performed.
the extraction unit is not correctly in-
serted.
cable does not match that of the CAM
system.
faulty.
Fig. 1
and
Fig. 2
on page 2 of this document.
• Switch off the unit and let it cool down.
• Provide sufficient cooling, e.g., using:
- Note Chap. 4.2 Setup.
- Use external air duct (see Chap. 4.6).
• Replace fine filter (see Chap. 6.3).
• Check suction hose.
• Please also note the information in Chap. 4.4.
• Check that the dust drawer fits correctly (see
Chap. 6.2).
• Switch the unit off and then on again so that the filter
is cleaned.
Replace the fine filter (see Chap. 6.3) if cleaning the
filter does not improve suction power.
• Set a shorter time interval (see Chap. 6.2.1).
• Set a longer time interval (see Chap. 6.2.1).
• Wait until the filter has been cleaned.
• Switch off the unit and leave to cool for at least 60
minutes.
• Check whether suction hose is blocked, eliminate
blockage.
• Switch the unit off and then on again so that the filter
is cleaned.
Replace the fine filter (see Chap. 6.3) if cleaning the
filter does not improve suction power.
• Replace suction turbine.
• Check the connector on the extraction unit and CAM
system.
• Check the interface cable for damage, replace if re-
quired.
• Compare the connector assignment of the interface
cable with that of the CAM. Use a suitable interface
cable if required.
• Contact Renfert / Service.
- 1 -
Corrective action
en