3: Troubleshooting Components Troubleshooting
60
CO
2
Monitoring Problems
Table 23 CO
2
Monitoring Problems
Symptom Possible Causes Suggested Solution
CO2 Calibration Overdue tech. alarm Calibration overdue Perform calibration.
CO2 Check Airway Adapter tech.
alarm
• Airway Adapter not installed or dirty
• Zero required
• Check the airway adapter and
clean or replace as necessary.
• Perform an adapter zero.
• Replace the sensor if persists.
CO2 Zero Required tech. alarm
CO2 Out of Range tech. alarm The calculated value is over the upper limit
(99 mmHg).
CO2 Check Line tech. alarm Sampling line may be occluded or kinked. Check the sampling line.
CO2 Communication Failure tech.
alarm
Unexpected module behavior • Unplug sensor from the device
for 10 s and reconnect.
• Repeat Op Check.
• Replace sensor if persists.
CO2 Replace Sensor tech. alarm Sensor end of useful life Replace the sensor.
CO2 Sensor Over Temp tech. alarm The sensor temperature is over 40 °C
(104 °F).
• Move sensor away from heat.
• Let the sensor cool down.
• Replace the sensor if persists.
CO2 Sensor Unplugged tech. alarm Sensor / sampling line unplugged. Re-insert sensor / sampling line.
CO2 Tube Unplugged tech. alarm
CO2 Sensor Warming Up tech. alarm It may take a few seconds for the sensor to
warm up.
Wait until completion.
CO2 Service Required tech. alarm Hardware Error • Unplug sensor from the device
for 10 s and reconnect.
• Replace the sensor if persists.
CO2 Zero In Progress message The sensor is being zeroed. Wait until completion.
EtCO2 Error tech. alarm Unexpected module behavior. Philips asks
you to report this unexpected software
problem.
1. Disconnect sensor and reboot.
2. Reconnect sensor.
3. Export error logs and report to
the Response Center.
16:2) EtCO2 OpCheck
Communications Failure or (16:5)
EtCO2 Clinical Communications
Failure error log msg
Communications failure. Faulty sensor or
connection.
• Check the sensor connection.
•Run or rerun OpCheck.
• Replace the sensor if persists.
(16:3) EtCO2 OpCheck Service
Required or (16:4) EtCO2 Clinical
Service Required error log message
Service required. Possible sensor’s end of
useful life.
(16:6) EtCO2 Power Supply Out of
Tolerance error log message
Sensor voltage outside limits • Replace the sensor.
• Replace Proc. PCA if persists.
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