Welch Allyn Spot Vital Signs 4400, Service Manual

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Message Possible cause Suggested action
SpO2 rebooting. 044904 The SpO2 power on self test timed
out
Internal hardware malfunction in SpO2
module. If the problem persists, have the
device inspected by a qualified service
technician.
Nonin messages
Message Possible cause Suggested action
Sensor not connected.
Clear to retry. 040100
The SpO2 sensor is not connected Connect SpO2 sensor, if the problem is
still present, replace the SpO2 cable. If the
problem is still present, verify the module
functionality by replacing the sensor with
an applicable SpO2 tester. If the message
persists, have the device inspected by a
qualified service technician.
SpO2 interference
detected. Clear to retry.
040400
The SpO2 interference detected. Reapply the sensor to the patient. If the
problem is still present, replace the SpO2
sensor. If the problem is still present,
replace the cable. If the problem is still
present, verify module functionality by
replacing the sensor with an applicable
SpO2 tester. If the message persists, have
the device inspected by a qualified
service technician.
Low perfusion index. Clear
to retry. 040500
SpO2 marginal pulse quality or artifact Reapply the sensor to the patient. If the
problem is still present, replace the SpO2
sensor. If the problem is still present,
replace the cable. If the problem is still
present, verify module functionality by
replacing the sensor with an applicable
SpO2 tester. If the message persists, have
the device inspected by a qualified
service technician.
Temperature messages
Message Possible cause Suggested action
Temperature not functional. 030105 WACP message CRC
mismatch on
temperature module
Internal malfunction. If the problem persists,
have the device inspected by a qualified
service technician.
Temperature not functional. 030201 This message is not
implemented by the
temperature module
Internal malfunction. If the problem persists,
have the device inspected by a qualified
service technician.
Temperature not functional. 030202 This message is not
supported by the
temperature module
Internal malfunction. If the problem persists,
have the device inspected by a qualified
service technician.
Temperature not functional. 030203 The temperature module
has run out of memory.
Internal malfunction. If the problem persists,
have the device inspected by a qualified
service technician.
Service manual Appendix 111