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Liberty - Automatic Start (Self-Switching On)

Fixing automatic start issues in Liberty rebreathers

Issue:
Liberty randomly switches on when left in standby - battery jumpers connected.

Instruction:

  1. Check the handset connectors, they should be dry and clean of oxidization. Flooded handset connector can cause a spurious wakeup.
  2. Update the Firmware to the latest release – for Liberty CU HW 1.x most causes of self-switching have been fixed in FW 2.15.0 and up.
  3. Recalibrate the oxygen sensors – factor which contributes to the self-start condition.
  4. If the unit self-starts again wait for two or more times, send updated syslogs and divelogs to Divesoft. The easiest way to do this is by connecting the head via Bluetooth to the Divesoft App and using the "Report problem" function.
  5. Additionally, send a print screen of the CUs and HSs information from the Menu/system check.