Invacare Perfecto2 IRC5PO2AW Service Manual page 52

Invacare® Perfecto₂™ Oxygen Concentrator
Symptom
Fluctuating Flow:
Unit Excessively Loud:
Unit Overheats:
52
Probable Cause
Regulator/Flowmeter:
1. Incorrectly set regulator.
2. Flowmeter malfunction.
Outlet HEPA filter:
1. Dirty or plugged
Pneumatic exhaust:
1. Muffler cracked, damaged or
missing.
2. Muffler tubing disconnected or
damaged.
Compressor inlet filter missing and/or
orange sticker removed.
Incorrect style of inlet filter
(aftermarket).
Compressor removed.
Base exhaust vent plugged or
restricted.
Cabinet filters dirty or blocked.
Fan:
1. Leads to fan disconnected.
2. Defective fan.
3. Fan installed upside down.
Heat exchanger:
1. Dirty or plugged.
2. Damaged.
Compressor:
1. Defective.
2. Faulty capacitor.
3. Bad motor windings.
4. Worn seals.
5. Bad bearings.
Line voltage excessive (surge).
Solution
1. Check pressure at oxygen outlet. Adjust
regulator. Refer to 6.8 Adjusting Regulator, page
27
2. If flow is still unstable, check for leaks starting
at the compressor outlet fitting through all
pneumatic connections. If no leaks are found
and flow is still fluctuating, replace the regulator.
If pressure at test point is within spec (5 psi ±
0.5 max. [34.4 kPa ± 6.89]), replace flowmeter.
Refer to 6.15 Replacing Flowmeter, page 35.
1. If low flow conditions persist, replace outlet
HEPA filter. Refer to 5.3 Replacing the Outlet
HEPA Filter, page 13.
1. Replace. Refer to 5.5 Replacing the Muffler
Assembly, page 14.
2. Reconnect or replace tubing.
1. Replace compressor inlet filter. Refer to 5.4
Replacing the Compressor Inlet HEPA Filter,
page 13.
1. Replace with factory OEM sound reduced style
inlet HEPA filter.
1. Replace Compressor. Refer to 6.2 Replacing
Compressor Assembly, page 18.
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 5.1 Cleaning the Cabinet
Filter, page 12.
1. Reconnect leads.
2. Replace fan.
3. Install fan with air flow arrow pointing down.
1. Clean heat exchanger.
2. Replace heat exchanger. Refer to 6.9 Replacing
Heat Exchanger Assembly, page 28.
1. Replace compressor. Refer to 6.2 Replacing
Compressor Assembly, page 18.
2. Replace capacitor. Refer to 6.3 Replacing
Capacitor, page 21.
3. Replace compressor. Refer to 6.2 Replacing
Compressor Assembly, page 18
4. Replace compressor. Refer to 6.2 Replacing
Compressor Assembly, page 18
5. Replace compressor. Refer to 6.2 Replacing
Compressor Assembly, page 18
Have line voltage inspected by certified electrician. A
voltage regulator may be required and is obtainable
from your local electric company.
1154245-F-02