11 Troubleshooting Sirona Dental Systems GmbH
Operating Instructions PerioScan
61 95 825 D 3496
34 D 3496.201.03.05.02
Malfunction: "Foot switch defective"
Board pair defective
Foot switch no responding
Inform service engineer
Replace foot switch or inform service engineer
Malfunction: “Keyboard not responding“
Operator error – PERIO keys cannot be saved
Operator error – Intermediate power values cannot
be set
Operator error – PERIO keys not assigned
Connecting cable not plugged in or defective,
membrane keyboard defective, display board
defective
Make desired settings, press PERIO key longer
(illumination starts flashing)
Keep power keys pressed longer
Press key and switch unit on again
Inform service engineer
Malfunction: "No light"
Operator error – Start screen does not disappear
when handpiece is removed
Operator error – Foot switch actuated during
power-on
Operator error – hose not plugged in properly
Unit – Start screen does not disappear when hand-
piece is removed – foot switch is defective
Unit – Start screen does not disappear when hand-
piece is removed – Microswitch in holder defective
or not plugged in
Switch unit on without actuating foot switch
Switch unit on without actuating foot switch
Check plug connections of hose, reconnect them
Replace foot switch or inform service engineer
Inform service engineer
Malfunction: "No display"
Unit – Display cable not plugged in or defective, pri-
mary fuse defective, board pair defective, trans-
former defective, display board defective
Inform service engineer
Malfunction: “Low handpiece power“
Worn tip
Operator error – power set low
Operator error – only flushing actuated on foot
switch
Handpiece – handpiece defective
Unit – foot switch not connected properly, hose not
connected properly
Unit – board pair defective
Check length with tip gauge, replace tip if neces-
sary and tighten it
Check power setting and correct it if necessary
Actuate both foot pedals simultaneously
Replace handpiece or inform service engineer
Check foot switch and hose connections and
replug them if necessary, or inform service engi-
neer
Inform service engineer
Without
display
Error description Action to be taken by the dentist
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