Started with the green light of happiness today, did my dive with happy green, came back to wash things down and now there's a red light. Bummer, right? Undo everything. No water, not even a hint of a drop. Good.

Trying to get a green light back as it went straight to blue after I flipped the switch off and on. I can get a yellow, but then it either goes off or goes back to blue. I can't get a green.

Battery? Hopefully I can find a replacement in the morning, if so.

Issue with the vacuum seal port? How to troubleshoot/fix this?

Other suggestions? Totally bummed. Wobbie from the other day for tax.

First suggestion is fresh battery. Though it should blink red/blue when switched if low. If you lose vacuum it signals this by flashing red not solid red. I found another reference online which indicates that solid red is dead battery. That's you best bet I think.

16 minutes ago, Chris Ross said:

If you lose vacuum it signals this by flashing red not solid red.

It should flash yellow first when it senses you are losing vacuum, flashing red is vacuum lost already.

Funny enough, i had this today on 3rd dive, started flashing yellow at 20 meters, got up to 5 meter and it went to green again.