Have you cleaned the filter regularly? Has the unit been bumped around a lot? The reason I ask is there is a switch in the lamp cover that will prevent the projector from starting if the lid is not closed completely. So if it were mine, first thing I would do is open up the lamp cover remove, inspect, and reinstall the lamp. If none of that worked, I would reset the lamp counter (instructions are in the manual near the end) If still no light I would consider a new projector unless you can find someone close by your locations with a known good lamp. You DO NOT want to buy a cheap lamp as many of those knockoffs don't work in a functional projector and you are trying to trouble shoot. A new OEM lamp is $298 and that would be a gamble only you can decide is worth the risk. You should put your location in your profile so people know were you are located. I have a functional backup lamp I saved when I replace mine so if you are near Philadelphia PM me and maybe I can let you borrow it. There is a possibility that some other component has failed especially if you have not kept the filter clean so a known good lamp is the only way for you to test it at home.