If your colorwheel and fans do not start spinning up, then it's not a lamp issue. The lamp will only strike if the colorwheel is already spinning. It's a safety feature to prevent burning the colorwheel. If your projector is completely dead ie no fans or colorwheel, then it's either the power supply or the controller board that has died, in that order.
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Hello Look at the number of blinks of the status light.  If it blinks at one cycle (0.5seconds On and 2.5seconds OFF) : Lamp cover error or lamp housing error. Replace the lamp cover or lamp housing correctly.  If it blinks 2 cycles (0.5 seconds ON and 0.5 seconds OFF): Temperature error. The projector is overheated. Move the projector to a cooler position.  if it blinks at 4 cycles (0.5 seconds ON and 0.5 seconds OFF): Fan error. Fans sill not work correctly.  If it bliks at 6 cycles (0.5 seconds ON and 0.5 seconds OFF): Lamp fails to light. Wait a full minute and then turn on again.  If it blinks continous (Red): Lamp has reached the end of its life. Lamp replacement messege will be displayed. Replace Lamp with same type and number. After replacement reset lamp hour. OK.
The clicking sound is the high voltage power supply trying to ignite the gas in the lamp. The lamp is not firing and coming on. Check the bulb/ lamp life. Possible the lamp has exceeded its useful life and may need to be replaced.
check the lamp hours in the menu. if it's close to the end of the lamp's life, it'll need replacing and the timer reset. if the lamp is ok, i'm going to guess it's overheating. blow the dust out of it with canned air and try again. if it still shuts down, you have a power supply problem.
the expected lamp life is an average .. its not unusual to see early failures ... check the lamp connections to make sure they are secure ... check ventilation to make sure its not blocked by dust .. if there is a fan, make sure its working ..
Ok we're back to the flashing lamp cover LED. The green flashes you are seeing is the TV trying to start up. After it tries for awhile, it will eventually shut down and display an error code, in this case, the lamp cover LED flashing which means either the lamp cover, filter cover or main cabinet sensing switches are not closed, are intermittent or have some kind of wiring issue. A solid lamp cover light (no flashing) would point to the lamp and lamp drive, but the flashing light points to the switches. Give me an email address and I'll send you the training and troubleshooting manual so you can see for yourself. Any ther help needed, please don't hesitate to ask.
if mains is ok and fan running ok, could be a bulb service issue, all lcd projectors have an internal lamp life counter which counts down and once the lamp has reached the end of its life it will not fire up and a new bulb will be required.