6 Error messages
Sirona Dental Systems GmbH
Operating Instructions SIROTorque L
+
60 52 208 D 3489
18
D 3489.201.01.03.02
6
Error messages
Errors are indicated on the "Bur Speed" display.
The display illumination flashes during the error display.
Error message F1
The motor has been switched off for safety reasons
(overheating or insufficient supply voltage).
Remedy:
Remove your foot from the foot switch and
wait for approx. 1 minute until "F1" disappears from the
display.
The unit is ready for operation.
Error message F2
"EEPROM" error
Remedy:
Call your service engineer.
Error message F3
The unit was disconnected from the power supply while
the foot switch was pressed (e.g. loose contact, brief
power failure).
Remedy:
Remove foot from foot switch, ensure trou-
ble-free power supply, restart.
Error message F5
No motor connected or motor or motor hose defective.
Remedy: Connect motor properly; replace motor hose or
motor if necessary.
Error message F11
Short-circuit protection activated.
Error message F12
Electrical connection between motherboard and motor
too weak.
Error message F13
Position detection of turbine in motor defective.
Error message F1
4
Overcurrent in motor lamp circuit.
Lamp or motor defective.
Remedy F11 – F14:
Switch unit off, check for proper
installation of motor incl. lamp or motor hose.
Then switch the unit back on.
If the error message appears again, please contact your
service engineer.
Motor Speed
Gear Ratio
1
2
Endo
3
SIROTorque L
+
Motor Speed
Gear Ratio
Bur Speed
Summary of Contents for SUROTorque L+
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