On 4/29/2025 at 10:44 PM, Susa said:

I had the same issue before 2 weeks, let it closed overnight, and next day when I opened it, there was a little water inside. Luckily it worked after drying. I did not found any problem on o-ring or elsewhere. I changed the almost new o-ring without really thinking that this was the issue :-(.

That's 3 similar HF-1 floods on this thread.

42 minutes ago, JayceeB said:

That's 3 similar HF-1 floods on this thread.

FYI - I've done about 20 successful dives with my HF-1 since the battery compartment had a flood. I cleaned it and replaced the orings for good measure and it's working great.