HPLovethrash wrote:If you didn't have any luck fixing this one, maybe try cleaning up the lid sensor switch inside. I fixed a DC for a local shop, I think it had a similar issue where the disc wasn't recognized or maybe the system refused to spin when the lid closed. Either way, it was an easy fix- I found some hair, dust, etc. gummed up in the lid switch. After cleaning it out, the thing ran beautifully!
Good idea. If it was me, I would temporarily remove the switch and jumper the connection so it's guaranteed to be in the "lid closed" position. While the switch is out, test it with a multimeter to make sure it functions properly. Doing this will give you a clear answer if the switch is the problem or not. I say this in case you clean it but it still doesn't work, it's not a definitive test.