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Troubleshooting and repair
Troubleshooting chart
This troubleshooting chart includes error codes related to possible internal failures. Based
on the observed symptom, perform suggested actions one at a time from top to bottom.
To reduce repair costs, determine whether the symptom still exists, by performing the
device functional verification after each action. 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.
Wrong power adapter.
Defective power adapter.
Battery is fully discharged.
Battery fuse open.
Verify that the power adapter is plugged into the
AC source and the monitor.
Use the right power adapter.
Replace the power adapter.
Run the battery verification test; replace the
battery if necessary.
Replace the battery.
Battery run time is low. Defectivebattery Replace the battery.
NIBP air leak exceeds
specified limits.
Leaky check valve. Replacethe check valve.
Leaky tubing or connector. Replace the tubing or the connector.
Leaky pump. Replace the pump.
Leaky bleed or dump valve. Replace the POEM2 NIBP manifold (if a POEM2
module is installed) or replace NIBP module.
Warning: Always characterize NIBP after
replacing any NIBP component. (See “NIBP
characterization” on page 36.)
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 “NIBP
characterization” on page 36.)