Invacare Perfecto 2 Series Service Manual page 22

SECTION 4—TROUBLESHOOTING
SYMPTOM
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.
™
Perfecto
2
PROBABLE CAUSE
Internal repairs required.
System leak.
Defective check valves.
22
SOLUTION
Replace SensO circuit board. Refer to
2
Replacing P.C. Board on page 59.
Repair leak in product tank, regulator,
tubing, fittings, or flow meter.
Replace check valves. Refer to Replacing
Check Valves on page 47.
Part No 1148070