Welch Allyn 420 Series - Troubleshooting, Maintenance, and Calibration; Troubleshooting: Error Indications and Interpretation

Spot Vital Signs 39
Troubleshooting, Maintenance, and Calibration
Troubleshooting: Error Indications and Interpretation
The following table of conditions and error codes provides a quick reference of the descriptions
and probable causes of error codes. For service-level troubleshooting, refer to the service
manual.
Press the white Blood Pressure Start/Stop button to reset flashing patient alarm conditions.
General Error Codes
Code Description Corrective Action
E11 Internal safety violation Check patient, contact Customer Service.
C12 Ambient temperature out of range Adjust temperature or device location.
C13 Battery failure Use wall transformer.
E0.0 - E9.9 Temperature module malfunction Contact Customer Service.
E20 - E50 General internal malfunction Contact Customer Service.
Blood Pressure Error Codes
Code Description Corrective Action
C02 Auto-zero failure Check for air obstruction, limit patient
movement.
C03 Inflation too rapid Check for kinked hose or air obstruction.
C04 Excessive inflation time Check for air leaks.
C05 Excessive noise Check patient condition, cuff placement,
limit patient movement.
C06 Measurement was outside of device’s
measurement range
Check patient condition.
E10 Cuff overpressure condition Check patient condition.
Temperature Error Codes
Code Description Corrective Action
C20 Broken/missing probe Replace probe.
P Loss of tissue contact Insure proper probe positioning.