Hello, I've recently been experiencing random firing on both my Z330 type 1 strobes. I use fiber optic cables, and it seems to only happen underwater, and strobes fire randomly and independently. I cannot recreate the firing.

 

Sync cord connection/port is dry. Battery compartment is dry. Strobes work normally when shooting, just some very annoying random firing every now and then.

 

Anyone experience something similar?

No chance you’re near another photographer and the strobes are seeing the other flashes? They can fire under those circs. 

13 minutes ago, TimG said:

No chance you’re near another photographer and the strobes are seeing the other flashes? They can fire under those circs. 

I was the only photographer on the trip. Also, the strobe sensors have connectors and plugs. I don’t think there’s any way stray light can get to it…

Fair enough!

 

Wireless transmitter to your dive computer? That can trigger strobes. 

Are both strobes doing it?  this tends to indicate a cause outside of the strobes.  It would be odd for both to develop the same fault at the same time.

Let's see a picture of the sync cord/strobe connection. It should be completely blacked out by the little cup over the sensor, which should eliminate any external signal from getting past. If you look at your housing LED/Flash trigger, does it blink randomly?