Ok so I must learn to touch wood! Dived Saturday - both Inon Z330's perfect. Prepped for a dive this morning - my older Z330 not firing at all - tried everything I know - changed cable, batteries etc etc - the other strobe working fine on the same cable and flash trigger --- the red light is on, focus light works, clearly receiving a signal as the green flash comes on but no flash.
Must be an electronics issue in the strobe - cannot see any sign of burnout in the flash tubes. Any ideas? Maybe time to get another mortgage and get the retras! Cheers