Technical Support wrote:
Since the light fires from the transmitter's test button, it sounds like there is a bad connection in the foot of the transmitter. Make sure it is securely in the hotshoe, as well, press down when you take a photo and see if it fires. If so, then the contact in the bottom of the transmitter may have retracted. You can see if you can extract it a bit, if not, there are some possible solutions.
Long term, you should contact Customer Service for a permanent remedy.
For tomorrow, if your camera and CST have the sync cord connections (older CST's did not have this connection) you can use this to trigger the remote.
If not, you may be able to wedge something between the foot and shoe to make the connection. A small peice of gaffers tape on the top side of the foot may also help.
Green flash is power on, green triple flash is repeater mode. Red flash is transmit/receive, multi red flash is low battery
I hope this helps.
i don't have a sync cord. are they supposed to come w/the transmitter?
the transmitter only flashes red when i push the test button, is it supposed to flash green too?
I read on the Alien Bee website that the life of the transmitter is 2 years. I have had it for a year, give or take. I was going to go ahead and order another one so that it doesn't happen again during a session.
Thanks for your help!