Resmed Autoset Cs-a User Manual
AutoSet™ CS-A
ADAPTIVE SERVO-VENTILATOR
Information Guide
English
Please read the entire Information and Welcome Guides before using your device.
Indications for use
The AutoSet CS-A is indicated to stabilise the ventilation of adult patients exhibiting central sleep
apnoea (CSA), mixed sleep apnoea and periodic breathing, with or without obstructive sleep apnoea.
It is intended for home and hospital use.
Contraindications
ASV therapy is contraindicated in patients with chronic, symptomatic heart failure (NYHA 2-4) with
reduced left ventricular ejection fraction (LVEF ≤ 45%) and moderate to severe predominant central
sleep apnoea.
Positive airway pressure therapy may be contraindicated in some patients with the following preexisting conditions:
• severe bullous lung disease
• pneumothorax or pneumomediastinum
• pathologically low blood pressure, particularly if associated with intravascular volume depletion
• dehydration
• cerebrospinal fluid leak, recent cranial surgery, or trauma.
Adverse effects
Patients should report unusual chest pain, severe headache, or increased breathlessness to their
prescribing physician. An acute upper respiratory tract infection may require temporary
discontinuation of treatment.
The following side effects may arise during the course of therapy with the device:
• drying of the nose, mouth, or throat
• nosebleed
• bloating
• ear or sinus discomfort
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• eye irritation
inserted too slowly.
positioned correctly.
EPAP may be set too low.
Talk to your clinician about your settings.
• skin rashes.
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 device enclosure.
Problem/Possible cause Solution
No display
Power is not connected. Ensure the power cord is connected and the power outlet (if
available) is on.
The DC plug is partially inserted
Fully insert the DC plug.
into the back of the device or
Insufficient air delivered from the device
Ramp time is in use. Wait for air pressure to build up or change ramp time.
Air filter is dirty. Replace air filter.
Air tubing is not connected
Check air tubing.
properly.
Air tubing is blocked, pinched or
Unblock or free the air tubing. Check the air tubing for punctures.
punctured.
Mask and headgear are not
Adjust position of mask and headgear.
Incorrect air tubing selected. If you are using the SlimLine, Standard or 3 m air tubing ensure
that you have the correct air tubing selected via the menu.
Non-vented mask is used. Only use a vented mask.
Mask vents might be blocked. Check if you have sufficient venting. Unblock mask vents if
necessary.
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Device does not start when you breathe into the mask
Breath is not deep enough to
Take a deep breath in and out through the mask.
trigger SmartStart/Stop.
SmartStart/Stop is disabled
Press Start/Stop to start therapy.
because the High Leak or Low
Minute Ventilation alarm is
enabled.
SmartStart/Stop is disabled
Press Start/Stop to start therapy.
because Confirm Stop is
enabled.
SmartStart/Stop is disabled. Talk to your clinician about enabling the SmartStart/Stop feature.
There is excessive leak. Adjust position of mask and headgear.
Connect the air tubing firmly at both ends.
Device does not stop when you remove your mask
SmartStart/Stop is disabled
Press Start/Stop to stop therapy.
because the High Leak or Low
Minute Ventilation alarm is
enabled.
SmartStart/Stop is disabled
because Confirm Stop is
A message appears on the screen. To stop therapy, select Yes and
press the Push Dial.
enabled.
SmartStart/Stop is disabled. Talk to your clinician about enabling the SmartStart/Stop feature.
SmartStart/Stop is enabled but the device does not stop automatically when you remove your
mask
Incompatible mask system
Only use equipment recommended by ResMed.
being used.
Incorrect mask setting being
used.
The patient is using a nasal
Check the selected mask type in the Setup menu. Change it if
necessary.
Disable SmartStart/Stop.
pillows mask with a set
pressure less than 6 cm H
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O.
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Pressure rises inappropriately
reconnect it to restart the device.
of water in the air tubing.
inserted too slowly.
Talking, coughing or breathing in
an unusual manner.
Mask cushion is buzzing against
Avoid talking with a nasal mask on, and breathe as normally as
possible.
Adjust the headgear.
the skin.
Cushion seated incorrectly
Adjust headgear or re-fit cushion.
causing excessive leak.
Displays message: High temperature fault, refer to user manual
Device has been left in a hot
environment.
Air filter is blocked.
Allow to cool before re-use. Disconnect the power cord and then
reconnect it to restart the device.
Replace your air filter. Disconnect the power cord and then
Air tubing is blocked. Check your air tubing and remove any blockages. Disconnect the
power cord and then reconnect it to restart the device.
Humidity level setting is too
high, resulting in accumulation
Turn the humidity level setting down and empty the water from
the air tubing.
Displays message: Check ResMed 30/90W Power Supply Unit and fully insert the connector
The DC plug is partially inserted
Fully insert the DC plug.
into the back of the device or
A non-ResMed power supply
unit is connected to the device.
The power supply unit is being
covered by bedding.
Remove the power supply unit and replace with a ResMed power
supply unit.
Make sure that the power supply unit is free from bedding, clothes
or other objects that could cover it.
The following message is displayed on the LCD after you try to update settings or copy data to
the SD card: Card error, please remove SD card and contact service provider
SD card is not inserted correctly. Ensure that the SD card is inserted correctly.
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displayed.
antibacterial filter is used.
You may have removed the
SD card before settings were
copied to the device.
Reinsert the SD card and wait for the Home screen or the
"Settings updated successfully, press any key" message to
appear on the LCD.
Note: This message only appears once. If you re-insert the SD card
after you have updated your settings, the message will not be re-
The following message is NOT displayed on the LCD after you try to update the settings using
the SD card: Settings updated successfully, press any key
The settings were not updated. Contact your clinician/service provider immediately.
Alarms
If the system has not been properly assembled, the device will trigger an alarm. Check that the air
tubing has been properly attached to the device and mask (and humidifier if used).
Problem/Possible cause Solution
Alarm is activated and the LCD screen display disappears
Power failure.
Power cord is disconnected or
mains power switch is turned
Remove your mask until power is restored.
Ensure the power cord is connected and the mains power switch
(if available) is on.
off during therapy.
Displays message: High leak, please check system setup and all connections
There is excessive leak. Adjust position of mask and headgear.
Connect the air tubing firmly at both ends.
Displays message: No tube, please check your tube is connected
Flow is high because air tubing
Connect the air tubing firmly at both ends.
is not connected properly.
Note: The tube disconnection
check may not operate when an
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Problem/Possible cause Solution
Displays message: Tube blocked, please check your tube
Air tubing is blocked. Check your air tubing and remove any blockages. Disconnect the
power cord and then reconnect it to restart the device.
Displays message: No SpO2 data, check oxi sensor attachment to module/finger
Oximeter sensor is not attached
properly.
Oximeter sensor might be
faulty.
Ensure that the oximeter sensor is attached properly to the module
and the patient's finger.
If the message appears repeatedly but the oximeter is attached
properly to the module and the patient's finger, the oximeter
sensor might be faulty.
Contact your service provider or exchange the oximeter.
Displays message: Non-vented mask, use vented mask or unblock mask vents
Non-vented mask is used. Only use a vented mask.
Mask vents might be blocked. Check if you have sufficient venting. Unblock mask vents if
necessary.
A low EPAP in conjunction with
Talk to your clinician about your settings.
supplemental oxygen may result
in false triggering of this alarm
on a vented mask.
Displays message: No oximeter, check/connect oximeter adapter
Oximeter adapter is not
Ensure that the oximeter adapter is attached properly.
attached properly.
Oximeter adapter might be
faulty.
If the message appears repeatedly but the oximeter adapter is
attached properly, the oximeter adapter might be faulty.
Contact your service provider.
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