My 30K has almost the same problem. I always leave it in standby. Mine stays in standby with the red light on but more times than not, when I turn it on, either by remote or the projectors buttons, the green light will come on for several seconds then it shuts down completely. No lights at all. No response using the remote or the buttons. I unplug the AC, immediately plug it back in and everything then works as normal.
I probably have around 3 or 4 hundred hours on it. Other than that power problem it works very well. Very even focus. The lens shift motors are a bit noisy but I don't think it's any louder than when it was new. I've been hesitant sending it in fearing it might come back with other problems. It was a Woot purchase, April 2013, I'm not even positive Sharp will honor the 3 year warranty. I know Woot listed 1 year on their site but the projector came with 3 year warranty documentation.
Has anyone sent their Woot purchased 30K in for repair after the first year?