Ventilator & Calibration Troubleshooting
906-0731-04-01 Rev. C ZOLL Ventilator Service Manual 6–7
Troubleshooting — Communication & Preventive Maintenance Alarms
Remote Calibration System
Discrete Tests Test Purpose Troubleshooting
Read Reads the device serial numbers.
• This is where most connection issues are
seen. (see Observations table)
Comm RAM and Bootloader
Check
CPU – Board Problem
• Check USB connections.
• Power cycle
• Replace Front Panel assembly kit.
SPM Communication SPM – (Board Problem)
• Check Data connection to device. (See
Test Station)
• Power cycle
EMV Self Check The device continuously monitors
components and issues alarm with hardware
failures that do not clear with a power cycle
• See the Service Code tables
SPM Self Check The device continuously monitors
components and issues alarm with hardware
failures that do not clear with a power cycle
• See the Service Code tables
Ventilator Alarms
Title Service Code Alarm Purpose Troubleshooting
Start Up – Self Check N/A When the device is turned ON
it will perform a self-diagnosis
and indicate and indicate a
self-check failure and identify
the component that requires
to be serviced.
• Self Check Failures are
identified by Service Code
(SC) numbers. The device
will display the service
code, alarm title and
mitigation.
Self- Check: Communication
Internal COMM CPU-SPM 1473 The CPU monitors the SPM.
• Hardware Problem:
Determine if the SPM is
property connected or if
the assembly/board may
need to be replaced.
Internal COMM CPU 1471 The CPU can no longer
communicate with the UIM
adapter board.
• Hardware Problem with
CPU or UIM.
• Check connections
between UIM and CPU.
• Consider replacement of
the CPU/UIM
1475 The contrast fault indicates
when the LCD Is not visible
• Replace LCD/PIM board or
replace the LCD front panel
both are viable.
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