Johnson & Johnson ETHICON ENDO-SURGERY HARMONIC 300, Service Manual

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GEN04
Chapter 9 - High-Level System Troubleshooting
The H
ARMONIC
™ Generator 300 System supports a series of audible and visual alarms, as well as error codes
displayed on the unit’s LCD, to help in the identification and troubleshooting of problems down to the
assembly level (i.e. generator, hand piece, foot switch, hand switching adaptor, etc.). These guides are meant
as an adjunct to, but not a substitute for, clinical judgment and observations.
If the problem cannot be resolved using the corrective actions below, contact the Ethicon Endo-Surgery
Customer Response Center at 1-800-USE-ENDO for assistance. Please have the model number, serial number
from the rear panel of the generator, and a detailed description of the problem. The description of the problem
should include power settings, accessories used, procedure being performed, and software revision of the unit.
Warning: Electric shock hazard. Always unplug the generator from the wall outlet prior to opening the cover
for servicing.
Warning: After removing the cover, inspect the internal components for obvious damage or foreign debris.
Never power ON a damaged unit.
Audible Indicators and Alarms
Tone Possible Cause and Corrective Action
No tone during power-up. Generator failure. Contact service personnel.
No tone when system is activated. Confirm that the foot switch is fully connected (if hand switching adap-
tor is not being used).
Confirm foot switch is not faulty.
If hand switching adaptor is used, confirm it is connected and not faulty.
Confirm that hand activation is enabled if the hand switching adaptor is
being used.
Activation (brief pulses) System is being activated or is in Test mode. System is operating
properly. MIN and MAX power have unique tones.
Alert (three-tone sequence) Activation is attempted while generator is in Standby mode. Push the
STANDBY button to return the generator to Ready mode.
Two or more foot or hand activation switches are recognized by the
generator as being activated simultaneously. Release all activation
switches and reactivate using only one switch
Constant tone 1 . Instrument is in contact with too much tissue. Reduce the amount of
tissue in contact with the instrument. If tone persists, carefully remove
any tissue that has collected in the distal end of the instrument shaft.
2 . Hand piece and/or blade fault. Press TEST to identify source of fault.