ZOLL EMV+ - Troubleshooting Power and Battery Issues

Ventilator & Calibration Troubleshooting
906-0731-04-01 Rev. C ZOLL Ventilator Service Manual 6–13
Troubleshooting — Power and Battery
Remote Calibration System
Discrete Tests Test Purpose Troubleshooting
Li-Ion Battery Check Evaluate the devices ability to discharge and
charge the Li-Ion battery and read battery status.
1) Discharge Check: discharge current >= 2000mA
for 120 sec or battery state of charge 30s < 80%
and discharge current >= 2000mA for 30 sec
2) Charge Check: charge current > 150mA for 30s
in total (does not have to be a continuous 30s)
• Review active service codes refer to the Service
code troubleshooting sheet
• When conducting this test, be sure to unplug the
external power from the connector at the
ventilator.
Ventilator Alarms
Title Service
Code
Alarm Purpose Troubleshooting
Complete Power
Failure
1420 When power is lost from both the
internal battery and an external
source during operation. The
device alarms for approximately
two minutes. When this occurs,
the LCD turns OFF; the audible
alarm will pulse rapidly, and the
LED shall flash rapidly.
• Apply external power to the device.
• Check battery is connected and charging.
• If external power is applied and battery does not
charge, or device does not power on, inspect
connections made to the PIM board.
• Ensure thermal gap pads are under PIM.
• PIM board may need to be replaced.
Self Check: Power System Fault/Failure
5V Bus Compromised 1172 Error indicates a self check failure
of the 5V bus.
• 5v bus originates from the power interface
module. Check the PIM board connection to the
SPM board.
• Repair: replace the PIM board, and verify.
(connection between the boards may be
damaged)
Input Protection
Circuit Failure
2421 Error indicates a damaged fuse
on the PIM board.
• Replace PIM, check SPM as they are connected
and my also be damaged.
Internal COMM
Battery Faults
2455 communication to the devices
main battery has failed.
(Without external power)
• Check connection from main battery to PIM
board.
• Replace battery or PIM
3455 Communication to the device’s
main battery has failed while
operating on external power.
• Check connection from main battery to PIM
board.
• Replace battery or PIM
Internal COMM Power
Components Fault
3470 The system has identified a
communication error with the
PIM.
• Check the connection from the PIM to the SPM
and check connection from the PIM to CPU.
• Repair: replace PIM or Connector cable to CPU.
N/A Indicates Possible faulty wiring of
the external power connector.
• Disconnect external power, and verify the icon
disappears. Try replacing your external power
cable.