Pixhawk continuously beeping, nothing seems to make it stop

[EliotBR (Eliot)]

Hi @Valor, welcome to the forum

@EliotBR

ArduSub by default expects a Leak Sensor to be connected to AUX port 6. That leak sensor is effectively a ‘normally closed’ switch, which becomes ‘open’ when one of the probes comes into contact with water, so if it’s not plugged in ArduSub thinks there’s a leak and engages the Leak Failsafe.

If you don’t have a leak sensor then you should be able to disable the leak sensor failsafe in QGroundControl on the Safety Setup Page.

I’d suggest reading the three comments in that thread