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   Possible cause: the device has been dropped or operated improperly, or the device is in a region of strong electromagnetic interference (EMI) emission.

   Response measures: Unplug the power plug. Re energized the device. If the fault is still present, please will re equipment moved to EMI emission weaker area (away from such as mobile phone, cordless telephone, computer, TV, electronic game machine, hair dryer and other electronic devices. If there is a failure, contact your home care provider for assistance.

    Question 2: when you press the delay button, the delay function is not.

    May be the reason: your home care provider does not have a prescription for you to use a delay function, or a prescription for you to specify that the CPAP pressure has been set to a minimum.

    Response: if you do not specify a delay function, please discuss this with your home care provider to see if they can change your prescription. If your provider has enabled delay function, but this feature is still not working, check the CPAP settings on the active display screen. If the CPAP is set to a minimum set value (4 H2O cm), or the same as the pressure at the beginning of the pressure and the prescription, the delay function will not work. To ensure that the delay time is set to >0.

    Problem 3 air temperature is obviously higher than usual.

    Possible reasons: the air filter may be dirty. The equipment may be working near the sun or the heater.

    Response measures: clean or replace the air filter, air temperature may change with room temperature and some changes. To ensure ventilation is normal. Bedding or curtains that cause the device to be far away from the airflow around the device. To ensure that equipment is far from direct sunlight and heating equipment. If you will use a humidifier and the equipment, please check the humidifier set. Please refer to the humidifier, humidifier to ensure normal work. If the failure is still there, please contact your home care provider.

    Question 4 the screen shows "required Service" (required for maintenance) or the following animated symbols.
    Possible reasons: equipment failure. 
    Response: press the control knob or delay button to close the alarm sound. Sow the power line from the equipment to the power off. The power socket power line plug equipment to restore power to. If the alarm is still there, contact your home care provider.