Invacare Perfecto2 IRC5PO2AW Service Manual page 53

Symptom
Oxygen Purity:
Internal Status Indicators:
Control Panel Indicators:
RED: Off
YELLOW: On
GREEN: On
After 30 minutes of run time, unit operates
normally, oxygen purity within normal range.
GREEN or YELLOW panel indicator should
illuminate.
Unit Not Operating,
Internal Status Indicators:
RED: Off
GREEN: Off
Control Panel Indicators:
RED: Off
YELLOW: Off
GREEN: Off
Power Switch ON.
Continuous audible alarm.
Unit Operating,
Internal Status Indicators:
RED: Three Flashes
GREEN: One Flash
Control Panel Indicators:
RED: Off
YELLOW: Flashing
GREEN: On
Potential Obstruction Alert does not activate
on flows less than 0.5 L/min.
1154245-F-02
Probable Cause
P. C. board defective.
Transformer assembly:
1. Assembly connector
disconnected.
2. Faulty transformer assembly.
Internal repairs required.
System leak.
Defective check valves.
Solution
Replace P. C. board. Refer to 6.12 Replacing P. C.
Board, page 32. Refer to 7.1 Autotuning, page 40.
1. Reattach connector.
2. Replace transformer assembly. Refer to 6.13
Replacing the Transformer, page 33.
Replace SensO circuit board. Refer to 6.12 Replacing
2
P. C. Board, page 32.
Repair leak in product tank, regulator, tubing, fittings,
or flow meter.
Replace check valves. Refer to 6.6 Replacing Check
Valves, page 26.
Troubleshooting
53