Troubleshooting; General Troubleshooting - ResMed Lumis Series Clinical Manual

Troubleshooting

If there is a problem, try the following suggestions. If you are not able to fix the problem, contact
your local ResMed dealer or ResMed office. Do not open the device.

General troubleshooting

Problem/possible cause
Air is leaking from around the mask
Mask may be fitted incorrectly.
The patient is getting a dry or blocked nose
Humidity level may be set too low.
There are droplets of water in the mask and air tubing
Humidity level may be set too high.
The patient is getting a very dry mouth
Air may be escaping through the patient's mouth.
The patient feels that too much air is being delivered from the device
Ramp may be turned off.
The patient feels that not enough air is being delivered from the device
Ramp may be in progress
Ramp Down may be in progress
Non-vented mask is used.
Mask vents may be blocked
A low EPAP in conjection with supplemental oxygen may
result in falsue triggering of this alarm on a vented mask.
No display
Backlight on the screen may have turned off. It turns off
automatically after a short period of time.
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Solution
Make sure the mask is fitted correctly. See mask user guide
for fitting instructions or use the Mask Fit function to check
mask fit and seal.
Adjust the Humidity Level.
If you have ClimateLineAir heated air tubing, see the
ClimateLineAir user guide.
Adjust the Humidity Level.
If you have ClimateLineAir heated air tubing, see the
ClimateLineAir user guide.
Increase the Humidity Level.
The patient may need a chin strap to keep the mouth closed
or a full face mask.
Use the Ramp Time option.
Wait for air pressure to build up or turn Ramp Time off.
Press Start/Stop to stop therapy then press Start/Stop to
restart and continue therapy.
Only use a vented mask.
Make sure there is sufficient venting. Unblock mask vents if
necessary.
Increase EPAP.
Press Home or the dial to turn it back on.