V. SETUP MENU AND TROUBLESHOOTING- CONT.
32
PROBLEM
POSSIBLE CAUSE
CORRECTIVE ACTION
Battery fails to charge properly
1. Plug-in power supply not connected
2. No voltage at outlet
3. Defective battery
4. Defective charger
1. Connect plug-in power supply
2. Connect to an active outlet
3. Replace battery
4. Replace charger
LOW BATTERY indicator on
Battery discharged
AC power must be restored and battery
charged
No exhaled tidal volume reading
1. Pneumotach disconnected
2. Problem with purging lines or
differential pressure transducer.
1. Reconnect the pneumotach
and/or tubes
2. Service needed
Incorrect tidal volume reading
1. Incorrect flow calibration
2. Blocked or kinked pneumotach tubes
3. Leak in patient circuit or endotracheal
4. Inspiratory terminated by Peak
Pressure high alarm limit
1. Review flow calibration procedure
and recalibrate
2. Check pneumotach tubes and
correct blockage
3. Check and correct the patient
circuit and endotracheal tube for
leaks
4. Adjust Peak Pressure high alarm
limit
Incorrect O
2
reading
1. O
2
sensor not connected
2. Incorrect calibration procedure
3. Faulty sensor cell
1. Connect sensor
2. Review calibration procedure and
recalibrate
3. Replace cell
No O
2
readings
O
2
sensor turned off
Turn on
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