Ventilator & Calibration Troubleshooting
6–38 www.zoll.com 906-0731-04-01 Rev. C
3442 External Power
Fault
Description:
The input voltage is too
low; < 11.5 VDC after
the fuse
Possible Cause:
• faulty external
power supply or
damaged connector
• faulty PIM board
• Confirm that the applied voltage is in specified range ->
External Power Supply Fault -> Replace external Power
Supply
• If the above does not resolve the issue -> Faulty PIM
board ->Replace the PIM Board
3444 External Power
Fault
Description:
Voltage in at <-1 VDC
Possible Cause:
• faulty external
power supply
• faulty PIM board
• Confirm that the applied voltage is in specified range ->
External Power Supply Fault or DC to DC converter at
fault -> Replace external Power Supply or DC to DC
converter
• If the above does not resolve the issue -> Faulty PIM
board ->Replace the PIM Board
2450
3450
Battery Discharge
Fault
Description:
The battery pack has
reported an internal
temperature of ≥ 70
degrees C
Possible Cause:
• The internal
temperature of the
battery pack is too
high
• Replace Battery Pack
3451 Battery Discharge
Fault
Description:
The battery pack has
reported an internal
temperature of ≥ 75
degrees C
Possible Cause:
• The internal
temperature of the
battery pack is too
high and external
power is plugged in
• Replace Battery Pack
CODES NAME
Description /Possible
Cause
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