ResMed AutoSet CS 2 user manual Troubleshooting, Problem Possible cause Solution

TROUBLESHOOTING

If there is a problem, try the following suggestions. If the problem cannot be solved, contact your equipment supplier or ResMed. Do not attempt to open the flow generator.

Problem	Possible cause	Solution
Insufficient air delivered from	Air filter is dirty.	Replace air filter.
flow generator
	Air tubing is kinked or	Straighten or replace tubing.
	punctured.
Flow generator operating	Water may have entered the	Remove the water from the
erratically, ie, switching on and	air tubing.	air tubing.
off, pressure varying at random
Pressure rises inappropriately	You are talking, coughing,	Avoid talking with the mask
	voluntarily breath-holding (eg	on, and breathe as normally
	while rolling over in bed), or	as possible.
	intentionally breathing in an
	unusual manner.
	Severe mask leak or mouth	Correct your leak condition.
	leak (greater than 30 L/min).
Alarm stays on continuously	Blockage in air circuit.	Ensure there is no barrier to
		the passage of air.
	Internal malfunction.	Return the device to your
		equipment supplier for
		service.
No LCD display	Power not connected or	Ensure the power cable is
	switch at back is not on.	connected, and that the
		switch at the back of the unit
		is in the “on” position.
FAULT message displayed on	Internal malfunction.	Return the device to your
LCD		equipment supplier for
		service.

ENGLISH

System Error 7 message	Device power-on has been
	interrupted by breathing into
	the mask during warm up.

Turn the flow generator off and on again. Do not place mask on face during warm up (30 seconds). Select LEARN CIRCUIT (page 26). If the error is not cleared, contact your equipment supplier for service.

Internal malfunction.	Return the device to your
	equipment supplier for
	service.

TROUBLESHOOTING

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