Invacare Perfecto2IRC5PO2AW Service Manual page 20

SECTION 4—TROUBLESHOOTING
SYMPTOM
Unit Overheats:
Oxygen Purity:
Good
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.
Perfecto ™
2
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.
20
SOLUTION
Place unit at least 30,5 cm (12-inches)
from any wall. DO NOT place unit on
pile or shag carpeting that may restrict
air flow.
Clean or replace. Refer to Cleaning the
Cabinet Filter on page 23.
a. Reconnect leads.
b. Replace fan. Refer to Rebuilding the
Thomas Model 2660 Compressor on
page 33.
c. Install fan with air flow arrow pointing
down.
a. Clean heat exchanger.
b. Replace heat exchanger. Refer to
Replacing Heat Exchanger Assembly
on page 50.
a. Replace compressor. Refer to
Replacing Compressor Assembly on
page 30.
b. Replace capacitor. Refer to Replacing
Capacitor on page 32.
c. Replace compressor.
d. Replace compressor.
e. Replace compressor.
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 57. Unit may need
retiming after P.C. board replacement.
Refer to Timing on page 72.
Part No 1154245