Invacare Platinum IRC5LXO2AW Service Manual page 24

SECTION 4—TROUBLESHOOTING
SYMPTOM
Unit Overheats
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
NOTE: The error code must be cleared from the unit's memory after fixing the fault. The error code memory will be
cleared after turning power on and off five times after the fault was detected.
Platinum Oxygen
®
PROBABLE CAUSE
Base exhaust vent plugged or
restricted
Cabinet filters dirty or blocked
Fan:
a. Leads to fan disconnected
b. Defective fan
c. Fan installed upside down
Heat exchanger:
a. Dirty or plugged
b. Damaged
Compressor:
a. Defective
b. Faulty capacitor
c. Bad motor windings
d. Worn seals
e. Bad bearings
Line voltage excessive (surge)
P.C. board defective
Transformer assembly:
a. Assembly connector
disconnected
b. Faulty transformer assembly
Internal repairs required
24
SOLUTION
Place unit at least 7.5 cm (3-inches) from any
wall. DO NOT place unit on pile or shag carpet-
ing that may restrict air flow.
Clean or replace. Refer to Cleaning the Cabinet
Filter on page 26.
a. Reconnect leads.
b. Replace fan. Refer to Replacing Cooling Fan
on page 52.
c. Install fan with air flow arrow pointing down.
a. Clean heat exchanger.
b. Replace heat exchanger. Refer to Replacing
Heat Exchanger on page 47.
a. Replace compressor. Refer to Compressor
on page 35.
b. Replace capacitor. Refer to Replacing
Capacitor on page 37.
c. Replace compressor. Refer to Compressor
on page 35.
d. Replace compressor.Refer to Compressor
on page 35.
e. Replace compressor.Refer to Compressor
on page 35.
Have line voltage inspected by certified electrician.
A voltage regulator may be required and is
obtainable from your local electric company.
Replace P.C. board. Refer to Replacing P.C. Board
on page 54. Refer to Autotuning on page 69.
a. Reattach connector.
b. Replace transformer assembly. Refer to
Replacing Transformer Assembly on
page 56.
Replace SensO circuit board. Refer to Replacing
2
P.C. Board on page 54.
Part No 1118396