ZOLL M Series Defibrillator Rev R - Manual (Page 78)

M Series Service Manual
68
PACER FAULT 123 Measured pace rate is too fast compared to selected
rate.
Replace high voltage
module or system
board.
PACER FAULT 126 Issued in conjunction with message 122. Pace
current is more than 15mA and below selected value.
Replace high voltage
module.
PADDLE FAULT Cannot detect type of accessory attached to the
universal cable.
Replace paddles,
internal paddles, system
board, high voltage
module and/or
universal cable.
PERFORM CPR Advisory message in AED auto defib mode. 
PLACE ON ZERO CELL EtCO
2
sensor cable plugged into unit for the first
time. Zeroing error or probe drift error detected.

Zero sensor. Replace
sensor. Return to ZOLL
for service.
POOR LEAD CONTACT One or more ECG leads are poorly connected or not
connected to patient. (User configurable.)
Check electrode
attachment to patient,
cable connector to
electrode, cable to unit
connector. Broken unit.
POOR PAD CONTACT Electrode impedance exceeds threshold. Ensure pads are
coupled to patient.
Check /replace pads or
universal cable.
Check impedance
circuit calibration.
Replace system board.
PRESS ANALYZE Alternate message for check patient prompt. 
Error Message Explanation
User
Advisory
Technical Action