ZOLL M Series Defibrillator Rev YH - Manual (Page 89)

Troubleshooting Guides
B-5
Defibrillator
Symptom Recommended Action
21. Excessive artifact when using paddles as ECG
source.
• Ensure “PADDLES” is selected.
• Firmly press paddles against patient skin.
• Use gel on paddles.
• Clean paddle surface.
• Check and clean between adult and pediatric shoe.
• Check cable for damage.
• Use ECG electrodes.
22. Defibrillator will not charge (energy level does not
increment on display).
• Check SHOCK button(s) on paddles or front panel are not
stuck on.
• Charge the battery pack.
23. Charge time to 360 J exceeds 10 seconds.
• Typical in a low battery condition (up to 20 seconds)
• Change battery pack.
• Plug device into AC power.
• Install new fully charged battery pack.
24. Energy does not discharge when the SHOCK
button(s) is pressed.
• 60 seconds have elapsed in manual mode, since initial charge
ready. Energy was internally discharged.
• 15 seconds have elapsed in automatic mode, since initial
charge ready. Energy was internally discharged.
• Device is in “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 not completely charged when SHOCK buttons were
pressed. Wait for “DEFIB XXXJ READY” message and
ready tone.
• Press and hold SHOCK button(s) until energy is delivered to
the patient.
25. Unable to SHOCK when in “SYNC” mode.
• Ensure “SYNC XXXJ SEL” is displayed on monitor.
• Check for “SYNC” marker (arrow “

” above R-wave). If
not present, change ECG size, lead selection, or electrode
placement.
• Press and hold SHOCK button(s) until energy is delivered to
the patient.
• Alter ECG electrode placement.
• Make sure ECG signals are displayed.
26. No apparent energy delivery to patient.
• Under certain circumstances, some patients will not “twitch”
when energy is delivered.
• Perform defibrillator self test as described in GENERAL
MAINTENANCE Section.
• Check for “CHECK PADS” and ”POOR PAD CONTACT”
messages alternating on the monitor.
• If Multi-Function Electrodes are used, ensure proper
placement and contact.