Vital Signs Monitor Series 300 37 Service Manual
4 - Troubleshooting and Repair
Troubleshooting Chart
This troubleshooting chart includes error codes related to possible internal failures. If other
error codes appear, refer to the Directions for Use for information on the cause and suggested
remedy for those errors.
Caution Replace parts, components, or accessories only with parts supplied
or approved by Welch Allyn. The use of any other parts can lead to inferior
monitor performance and will void the product warranty.
Symptom Possible Cause Suggested Action
Monitor does not power up. Power adapter not powered.
Defective power adapter.
Battery is fully discharged.
Battery fuse open.
Verify that the power adapter is plugged
into the AC source and the monitor.
Replace the power adapter.
Run the battery verification test; replace
the battery if necessary.
Replace the battery.
Battery run time is low. Defective battery Replace the battery.
NIBP air leak exceeds
specified limits.
Leaky check valve. Replace the check valve.
Repeated C03 error code. NIBP internal tubing is
kinked.
Route tubing properly through the
monitor.
Repeated C04 error code. NIBP internal tubing is
disconnected.
Faulty NIBP module.
Properly connect the NIBP tubing.
Replace the NIBP module.
Warning: Always characterize NIBP
after replacing any NIBP component.
(See page 39.)
Repeated C07 error code. Incompatible SpO
2
sensor.
Faulty SpO
2
sensor.
Improperly connected SpO
2
sensor.
Faulty SpO
2
board.
Use a compatible sensor.
Replace the sensor.
Properly connect the sensor cable.
Replace the SpO
2
board.
Repeated C20 temperature
error code.
Probe well is not installed in
the probe-well housing.
Faulty probe.
Faulty temperature board.
Install the probe well in the probe-well
housing.
Replace the probe.
Replace the temperature board.
Error code E30 PROM is corrupt. Return the monitor to an authorized
service center for PROM programming.
To Next Page
Loading...
Need help?
General
