CHAPTER 14 TROUBLESHOOTING
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4. Energy does not discharge when
the SHOCK button(s) is pressed.
• 60 or 120 seconds (user configurable) have elapsed in
Manual mode since initial charge ready. Energy was
internally discharged.
• Device is in Sync mode or Remote Sync mode and no
QRS complex is detected.
• Energy internally discharged because energy selection
was changed during charge or after the device was
ready.
• Unit was not completely charged when SHOCK
button(s) were pressed. Wait for DEFIB XXXJ READY
message and ready tone.
• Press and hold SHOCK button(s) until energy is
delivered to the patient.
• Pads or paddles not making good contact with patient.
5. Unable to SHOCK when in Sync
mode
• Ensure SYNC XXXJ SEL is displayed on monitor.
• Make sure ECG signals are displayed.
• Check for Sync markers (arrow above R wave). If not
present, change lead selection, or electrode placement.
• Press and hold SHOCK button(s) until energy is
delivered to the patient.
• Alter ECG electrode placement.
6. Unable to SHOCK when in
Remote Sync mode
• Ensure REMOTE SYNC is displayed in place of the
ECG waveform and that REMOTE SYNC XXXJ SEL. is
displayed.
• Ensure that a remote device conforming with the Sync
In/Marker Out specifications in Appendix A is properly
connected.
• Ensure that Sync markers appear with each R-wave on
the remote device’s display. If Sync markers are not
present on the remote device’s display or do not appear
to be nearly simultaneous with each R-wave, do not
proceed with synchronized cardioversion.
• Press and hold SHOCK button(s) until energy is
delivered to the patient.
7. No apparent energy delivery to
patient
• Under certain circumstances, some patients will not
show a physical reaction when energy is delivered.
• Perform defibrillator self-test.
• Check for CHECK PADS and POOR PAD CONTACT
messages alternating on the monitor.
• If hands-free therapy electrodes are used, ensure
proper placement and contact.
• Review the discharge stripchart for Joules/current
delivered.
Symptom Recommended Action