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SYMPTOM:
UNIT OVERHEATS:
OXYGEN PURITY: GOOD
Internal Status Indicators:
RED: Off GREEN: Off
Control Panel Indicators:
RED: Off YELLOW: Off
GREEN: Off
Purity Switch setting at 73% or
85%: After 30 minutes of run time,
unit operates normally, oxygen
purity within normal range. Green
or Yellow panel indicator should
illuminate.
NOTE: REFER TO THE REPAIR/REPLACEMENT GUIDE IN THIS MANUAL FOR PROPER
TROUBLESHOOTING GUIDE
PROBABLE CAUSE:
1. Base Exhaust Vent Plugged or
restricted.
2. Cabinet Filters Dirty or blocked.
3. Fan.
a. Leads to fan disconnected.
b. Defective Fan.
c. Fan installed upside down.
4. Heat Exchanger.
a. Fins dirty or plugged.
b. Fins damaged.
5. Compressor.
a. Defective.
b. Faulty capacitor.
c. Bad motor windings.
d. Worn seals.
e. Bad bearings.
6. Line Voltage excessive (surge).
1. P.C. Board defective.
REPLACEMENT OR ADJUSTMENT PROCEDURES
TROUBLESHOOTING GUIDE
1. Place unit at least 3-inches from
any wall. DO NOT place unit on
pile or shag carpeting that may
restrict air flow.
2. Clean or replace (PROCEDURE
2).
3a.Reconnect leads.
3b.Replace fan (PROCEDURE 10).
3c.Install fan with air flow arrow
pointing down (PROCEDURE
10).
4a.Clean heat exchanger (PRO-
4b.Replace heat exchanger (PRO-
5a.Replace compressor (PROCE-
DURE 7).
5b.Replace capacitor (PROCE-
DURE 7).
5c.Replace compressor (PROCE-
DURE 7).
5d.Replace compressor (PROCE-
DURE 7).
5e.Replace compressor (PROCE-
DURE 7).
6. Have line voltage inspected by
certified electrician. A voltage
regulator may be required and is
obtainable from your local elec-
tric company.
1. Replace P.C. Board (PROCE-
DURE 11). Unit may need
retiming
replacement (PROCEDURE 18).
19
SOLUTION:
CEDURE 2).
CEDURE 8).
after
P.B.
T
R
O
U
B
L
E
S
H
O
O
T
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N
G
Board
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