Troubleshooting; General Troubleshooting - ResMed Defy Mini User 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 start pressure may be too low.
No display
Backlight on the screen may have turned off. It turns off
automatically after a short period of time.
Power may not be connected.
Therapy has stopped, but the device is still blowing air
Device is cooling down.
Humidifier is leaking
Humidifier may not be assembled correctly.
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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.
Increase Ramp start pressure.
Press Home or the dial to turn it back on.
Connect the power supply and make sure the plug is fully
inserted.
Device blows a small amount of air in order to avoid
condensation in the air tubing. It will stop automatically after
20 minutes.
Check for damage and reassemble the humidifier correctly.