I have a Technobeam fixture that keeps displaying "Lamp Out" on the LCD, that lamp has been replaced along with the capacitor. I have tested the ignitor and the ballast and they are fine, does anyone else know what the problem could be? I've just about come to the conclusion that it's the main board.
Unless it is a Wiring problem, such as a lamp socket, Make sure you look for any bare wire, it will make it easy for the lamp strike voltage to find an alternate path to ground, thus not strking the lamp. If is not a wiring problem, It probably is the main board.