ResMed Mirage Liberty manual Troubleshooting, Problem Possible reason Possible solution

Troubleshooting

Problem	Possible reason	Possible solution
Mask won’t seal properly or is	Mouth cushion or pillows may	Clean mask according to
uncomfortable	be dirty.	instructions in “Cleaning the
		Mask in the Home”.
	Mask may have been fitted	Carefully follow instructions in
	incorrectly.	“Fitting the mask”.
	Mask is incorrectly adjusted.	Check headgear is not over-
		tightened.
	Mouth cushion is wrong size.	Talk to your clinician.
	Mouth cushion is skewed in	Check insertion of cushion.
	mask frame.

English

Mouth cushion is misaligned or creased on face.

Mask pillows are the wrong size.

Mask pillows are not correctly seated in your nostrils.

Ensure cushion is properly aligned and that there are no creases in it: undo headgear clip, check cushion and reposition the mask on your face.

Try another size or talk to your clinician.

Re-seat pillows into nostrils.

	Mask pillows are skewed in	Check insertion of pillows.
	cushion.
	Mask is assembled incorrectly. Reassemble mask.
Mask is too noisy	Vents are blocked or partially	Clean vents according to
	blocked.	instructions in “Cleaning the
		Mask in the Home”.
	Valve is misassembled.	Reassemble valve.
	Cushion is not properly inserted. Check insertion of cushion.
	Mask is assembled incorrectly. Reassemble mask.
	Valve is damaged, torn or	Replace valve.
	distorted.
	Pillows are not inserted correctly	Check insertion of pillows.
	into cushion.
	Mask is not sealing.	Check and adjust mask as
		necessary.

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