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Troubleshooting

Stationary Concentrator

Green Light – working properly

Yellow Light – oxygen flow issue

Red Light – power-related issue

Find instruction and information on your specific concentrator here.

Note: the above color lights are not present on all concentrators

Issue

Possible Cause

What to Do

Alarm sounds

No power to concentrator

Check electrical plug. Check fuse or circuit breaker. Make sure the outlet is not controlled by a light switch. Push RESET button, if present. If problem continues, switch to your back-up system and call your local branch.

No flow

(Put the end of the cannula in a cup of water to make sure there is no flow; a steady flow of bubbles should be seen when oxygen flow is present)

Tubing is disconnected or kinked

Reconnect, straighten, or replace tubing.

Flow rate not set properly

Check flow meter on the front of the concentrator unit – make sure that flow rate is set to your prescription level.

Humidifier cross-threaded

Disconnect humidifier from concentrator outlet, and reconnect without cross-threading.

Concentrator power is off

Turn concentrator power switch to ON position.

Machine malfunction

Switch to your back-up system and call your local branch.

Flowmeter won’t adjust

Tubing is disconnected or kinked

Reconnect, straighten, or replace tubing.

Machine turns off by itself

Dirty filters

Clean or replace filters.

Machine malfunction

Switch to your back-up system and call your local branch.

Yellow alarm light comes on (NOT present on all concentrators)

Possible malfunction

Switch to your back-up system and call your local branch if light does not turn off in 20 minutes.

Red alarm light comes on (NOT present on all concentrators)

Machine malfunction

Switch to your back-up system and call your local branch.

Water in supply tubing

Some condensation is normal, but may block flow of oxygen

If necessary, replace the supply tubing. Try using less water in humidifier. Keep tubing elevated off floor.

If you’re having issues, contact your local branch. You can find your closest branch using our Locator.

It is important to work through whatever obstacles you encounter. Successful therapy is well worth the time and patience you invest in your ongoing health and wellness.