So my Speedlite 600ex-rt turns on, changes modes and functions, communicates with the camera when on the hot shoe but will not fire when shutter is clicked nor will it fire when trying to test (pressing red light). Does this mean the bulb blew? The flash tube blew? Do anyone have any answers?
We regret to hear that your Speedlite 600EX RT no longer seems to fire. Based upon your description of this issue we recommend sending this into Canon at your earliest convenience.
You may fill out an online repair request form at the following link to setup your repair using our online service.
It's a few years later, but my 600EXii-RT is experiencing the exact same problem you had. I was wondering if you resolved the issue, and if you didn't, did you send the flash unit to Canon for repair, and if you did, what did it cost. Thanks!
