SeQual Technologies Inc. Part No: 7040
13
Trouble Shooting Guide
Table 1: Concentrator is not Running
Symptom Probable Cause Remedy
Power cord not plugged into wall outlet. Plug in power cord.
Cannot Start Unit
Flow Indicator Blank
Back Light Off
Internal Fuse Blown Service required.
Power cord pulled from wall outlet. Plug in power cord.
Power outage.
Push On/Off Button to turn off
unit.
Push On/Off Button to restart unit
when power comes back on.
Audible Alarm
Blinking Red Light
Flow Indicator Blank
Back Light Off
No power at wall outlet.
Ensure the unit is not plugged
into a wall switched outlet.
Check house circuit breaker or
fuse - reset or replace as needed.
Unit overheating
Remove any obstruction(s) from
air openings and refer to page 6
“The Proper Location”.
Audible Alarm
Blinking Red Light
Flow Indicator Blank
Back Light On
Compressor malfunction Service required.
Table 2: Concentrator Running
Symptom Probable Cause Remedy
Humidifier or tubing blocked or kinked
Clean or replace humidifier
and/or tubing.
Remove tube kink.
Air Inlet Filter blocked Clean air inlet filter.
No oxygen / flow
(see Alarm Indications in
Table on Page 11)
Internal component malfunction Service required.
Restriction in humidifier or tubing. Repair or replace as required.
Air Inlet Filter restricted Clean air inlet filter.
Low oxygen / flow
(see Alarm Indications in
Table on Page 11)
Internal component worn or
malfunctioning
Service required.
Yellow Light On Button is stuck Service required.
Flow Rate not visible on
Flow Indicator Display
LCD malfunction Service required.
Audible Alarm
Red Light On
Flow Indicator Blank
Back Light On
System malfunction
Remove power cord from wall
outlet.
Service required.
Note: If abnormal operating conditions are detected and cannot be remedied, contact your Service Provider
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