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

Page: 33 / 80

31
GEN04
Chapter 9 - High-Level System Troubleshooting
Error Code 4: Hand Piece Error Code 4 indicates that the hand piece has exceeded its
Temperature specified operating temperature. For immediate recovery, use
another hand piece; or, follow the steps below to determine the cause
of the error condition and alternate recovery methods.
The following are possible causes of an increase in hand piece
temperature. To correct, complete the appropriate steps below and
allow the hand piece to cool before resuming operation .
1 The hand piece is still warm from recent steam sterilization.
Allow the hand piece to cool at room temperature for at least 45
minutes or, for rapid cooling, soak it in room-temperature sterile
water for 5 minutes before resuming operation.
Note: The hand switching adaptor (HSA07) should not be
submerged for rapid cooling purposes. This may render the hand
switching adaptor inoperable for an extended of time. After
steam sterilization, allow the hand switching adaptor to air cool
at least 15 minutes prior to use.
2 The instrument may not be tightened properly or tissue may
have collected in the distal end of the instrument shaft. Tighten
instrument using blade wrench and carefully remove tissue from
distal end of instrument sheath. Press STANDBY to clear error
code and return to Ready mode. Activate system. If the pre-run
test is running, ensure instrument is in air. If using shears,
ensure jaws are open and not in contact with any objects during
pre-run test.
Note: Inspect the blade wrench hub for cracks or wear before
use. If damage is seen, replace the blade wrench. Before use
after autoclaving, cool the blade wrench at room temperature for
at least 45 minutes or soak it in room temperature sterile water
for 5 minutes.
3 If the error persists, install a test tip to isolate the problem. Press
TEST button.
• If system indicates a hand piece error, hand piece is bad or
test tip is bad. Replace hand piece or install a new test tip
and press TEST.
• If no error occurs with test tip attached, replace instrument.
4 Press STANDBY to return to Ready mode. Activate system.