During my last couple shoots I've been running into some problems with my AB800s. I will plug them into my vagabond and sometimes one or two the lights won't go off. I figured it might be a problem with the power source, but the problem is still apparent when I use a wall plug. I then figured maybe I had to change the batteries in my PWs, and even after that nothing. I even tried using the dedicated sync cable from AB and I still couldn't fire them. If I push the test button on the back of the lights they go off without a hitch. Sometimes when I remove the softbox from the lights they will start firing, but still not all the time. Any ideas or suggestions, i feel like I have tried pretty much anything I can think of. I've had the lights for just over 3 years if that is any consolation. Is it time for a change?
Any suggestions greatly appreciated.