CHAPTER 14 TROUBLESHOOTING
14–4 www.zoll.com 9650-0904-01 Rev. N
Recorder
Pacer
Symptom Recommended Action
1. CHECK RECORDER message
• Recorder out of paper.
• Remove paper, check paper type, check recorder for
paper jam, and reload paper.
• Recorder door is open.
• Paper is loaded upside down.
2. Recorder makes stuttering sound
when activated.
• Check recorder for paper jam.
3. Light or poor quality printing
• Ensure correct paper is in use.
• Ensure paper is installed grid side against recorder print
head.
• Recorder print head requires cleaning.
4. Summary Report will not print
when Report/Print Chart softkeys
are activated.
• 15 seconds have not elapsed since one of the events
that trigger Summary Report to record have occurred.
Wait 15 seconds, then try again.
Symptom Recommended Action
1. CHECK PADS message
• Ensure therapy electrodes are connected to the
OneStep cable.
• Ensure electrode gel is not dry. Replace therapy
electrodes if necessary.
• Ensure good electrode-to-patient contact.
• Check integrity of OneStep cable by plugging into test
connector. CHECK PADS should disappear.
2. No stimulus marker ( ) is
present on the ECG trace.
• Ensure unit is in PACER mode.
• Ensure PACER RATE (ppm) is set greater than patient
heart rate.
3. No ventricular capture beat
appears after stimulus marker on
ECG display.
• Check patient’s pulse.
• Increase output current.
• Ensure therapy electrodes are making good contact
with the patient.
• Select different ECG Lead configuration.
• Review therapy electrode placement.
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