New ATI flickering

[Miami Reef]

8 bulb dimmable. Brand new and bulb number 3 and 6 are the only ones not flickering. Why is this happening?

And the other unit doesn’t even have 3&6 on :(

 

[Tumey]

I’m not familiar with your exact fixture but I would first double check that all your bulbs are twisted into their sockets correctly so the pin engagement can be excluded from troubleshooting. Most fixtures do crazy stuff when a bulb isn’t making complete contact at the pins.

 

[CanuckReefer]

8 bulb dimmable. Brand new and bulb number 3 and 6 are the only ones not flickering. Why is this happening?

And the other unit doesn’t even have 3&6 on :(

As @Tumey mentions, check all lamps for correct socket engagement. Is this happening while lights are on a dim function, or full blast? Could be a fault in the dimming system, or a ballast issue... even one bad lamp can also throw a hiccup into the system. My non dim T5's give me grief from time to time. Taking a few days to burn in properly, even with a new ballast.