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7.0 Troubleshooting
7.4 Suction system
7.5 Light sources
Error indication
Possible cause
Remedy
Weak suction or no suction at all
• Suction hose is clogged
• Rinse the suction hose with water (hose
can also be removed)
•
Float of overflow safety closes the
suction opening
•
Check filling level in the secretion canister
• Lid of secretion canister is not
closed tightly
• Check that lid of the secretion canister is
closed properly
•
Bacterial filter is clogged
•
Replace the bacterial filter
• Hose connections are leaking
• Seal up or replace connections
• Connecting hoses in the secretion
canister compartment are broken
• Check hose connections, remove kinks
• Secretion penetrated the suction
pump
• Have suction pump cleaned by a service
technician
No suction, but vacuum gauge
indicates -0.7 bar
• Suction hose is clogged
• Rinse the suction hose with water (hose
can also be removed)
•
Float of overflow safety closes the
suction opening
•
Check filling level in the secretion canister
•
Bacterial filter is clogged
•
Replace the bacterial filter
• Connecting hoses in the secretion
canister compartment are broken
• Check hose connections, remove kinks
•
Overflow safety is closed
• Hang up suction attachment, open
regulating valve and tap the secretion
canister; the floats of the overflow safety
must drop back in their resting position
No suction and suction motor does
not start
• Photoelectric barrier / electronics
defective or photoelectric barrier is
polluted
• Clean photoelectric barrier
• Have photoelectric barrier checked by a
service technician
No suction; suction motor fails to start
although compressed-air pump starts
• Compressed-air handle and
suction hose in handle support
transposed
• Position handles corresponding to
switching function
Error indication
Possible cause
Remedy
No light
• No voltage
• Check mains voltage and fuses
• Light guide was swapped so
that another light channel was
activated.
• Position light guide correctly
