1. ResMed Asia Product Support
  2. Technical Service
  3. Troubleshooting on AirSense 10, AirStart, AirCurve, Lumis

The following message is displayed on the device: "System fault, refer to user guide, Error 020 Description: Flow sensor CRC error"

AirSense 10, AirStart, AirCurve, Lumis

Possible Cause:
Faulty flow sensor

Solution:
Replace main PCB