Error
The extraction force is not
readjusted when a second
suction hose is switched on
or off.
The display indicates "OFF"
above the button
There is no audible signal.
Pinch valves close / open
slowly.
EN
Possible Cause
• The automatic extraction force re-
adjustment is deactivated.
• The automatic extraction force re-
adjustment is deactivated.
(41).
• The audible signal is deactivated.
• The filter in the compressed air
connection is blocked.
• Activate the automatic extraction force readjust-
ment (See chapter 5.2.2).
• Activate the automatic extraction force readjust-
ment if required (See chapter 5.2.2).
• Activate audible signal (Chapter 5.3.2).
• Change the filter in the compressed air connec-
tion (see chapter 6.2.4).
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Corrective Action