Philips DreamStation 2 Auto CPAP Advanced error codes and alerts

Blocked air inlet Blocked air inlet

What it means: Something is blocking the air inlet or the filter.

What to do: Clear anything covering the inlet on the side of the machine. Rinse or replace the filter if it is dirty.

Low leak Low leak. Ensure mask and tube are connected properly without any obstruction.

What it means: The machine sees too little airflow, usually from a blocked tube or mask.

What to do: Check that the tube is not crushed or folded and that the mask and its vent are not blocked.

Contact support (heated tube) There may be a problem with your heated tube. Therapy will run without heating the tube.

What it means: The heated tube may be overheated or damaged.

What to do: Turn the device off, detach the heated tube, make sure it is not covered or blocked, and reattach it. If the alert continues, contact your provider.

Contact support (humidifier) There may be a problem with your humidifier. Therapy will run without humidification.

What it means: The humidifier is not working.

What to do: Turn off and unplug the machine, check that the electrical contacts are clear, then plug it back in. If it continues, contact your provider.

SD card read error There was a problem reading your SD card. Please remove and reinsert.

What it means: The card is faulty, was pulled out while writing, or was inserted wrong.

What to do: Remove and reinsert the SD card. If it continues, contact your provider.

SD card full Your SD card is full.

What it means: The card has no room for more data.

What to do: Replace it with a new card or ask your provider for one.

SD card removed Your SD card has been removed. Please reinsert to record therapy data.

What it means: The card was taken out and not put back before this session.

What to do: Reinsert the SD card so therapy data is recorded.

Service Required Service Required. Please contact support. (therapy button ring blinks)

What it means: The machine has entered Safe State: power stays on but airflow is disabled.

What to do: Unplug the machine and plug it back in. If the alert comes back, contact your home care provider.

Check Power Check Power (light blinks continuously)

What it means: An incompatible power supply is attached.

What to do: Use a Philips power supply that supports therapy. An 80 W supply is needed for humidification.

Low Voltage Low voltage (light blinks continuously)

What it means: The power source is not supplying enough voltage.

What to do: Confirm a compatible Philips power supply is attached. If you are on a battery, make sure it is charged.

Battery humidification notice The attached power supply is operating from a battery and does not support humidification.

What it means: You are running from a battery that cannot power the humidifier.

What to do: Use a compatible AC power supply, or use the machine without humidification while on battery.

Modem call 1-0 to 1-5 Connection error (Modem call status)

What it means: The cellular modem could not connect.

What to do: Unplug the device, wait 10 seconds and plug it back in. If it persists, contact your home care provider.