Filter
Top Products
SECTION 4—TROUBLESHOOTING
Part No 1148070 19 Perfecto
2
™
Unit not operating: Alarm:
On or Off
Internal Status Indicators:
RED: Two Flashes
GREEN: Four Flashes Or
RED: Two Flashes GREEN:
Five Flashes
P.C. board Failure. Replace P.C. board.Refer to Replacing P.C.
Board on page 58.
Low Concentration: NOTE:
Check for O
2
purity using a
calibrated Oxygen Analyzer
at Test Point 1 (oxygen
outlet) of the concentrator.
Internal Status Indicators:
RED: Two Flashes
GREEN: One Flash73%
Shutdown Control Panel
Indicators: SensO
2
ONLY:
RED: On
YELLOW: Off
GREEN: Off
For SensO
2 units, the RED
indicator will signal extremely
low purity and will be
accompanied by a continuous
audible alarm and a system
shutdown. Repairs are
required.
Cabinet filters dirty. Clean or replace. Refer to Cleaning the
Cabinet Filter on page 24, Replacing the
Outlet HEPA Filter on page 25, and
Replacing the Compressor Inlet HEPA
Filter on page 26.
Compressor inlet filter dirty. Replace inlet filter. Refer to Replacing the
Compressor Inlet HEPA Filter on page 26.
Compressor:
a. Defective.
b. Faulty capacitor.
c. Bad motor windings.
d. Worn seals.
e. Bad bearings.
f. Leak at fittings or tubing.
g. Leaky or defective relief valve.
h. Insufficient voltage (outlet).
a. Replace compressor. Refer to
Replacing Compressor Assembly
on
page 31.
b. Replace capacitor. Refer to Replacing
Capacitor on page 33.
c. Replace compressor.
d. Rebuild top end of compressor. Refer
to Rebuilding the Thomas Model
2660 Compressor on page 34.
e. Replace compressor.
f. Replace fittings or tubing.
g. Replace relief valve.
h. DO NOT use extension cords.
Heat exchanger:
a. Leak at tubing or body chamber.
b. Inspect tubing and heat
exchanger.
a. Replace or retighten.
b. Replace or retighten tubing. Replace
heat exchanger. Refer to Replacing
Heat Exchanger Assembly on
page 51.
Regulator cracked or leaking. Replace. Refer to Replacing Regulator
on
page 48.
Exhaust muffler dirty or plugged. Replace. Refer to Replacing the Muffler
Assembly on page 26.
Fan:
a. Not operating. Unit overheating.
b. Faulty fan.
a. Leads to fan disconnected.
Reconnect.
b. Replace.Refer to Replacing Cooling
Fan on page 55.
Sieve beds defective. Replace. Refer to Checking Sieve Bed
Pressure on page 86.
Tubing kinked or blocked. Repair or replace.
SYMPTOM PROBABLE CAUSE SOLUTION