Board Thread:Questions and Answers/@comment-80.192.207.217-20121219004139/@comment-5886838-20121219013727

At a guess the redstone signal isn't connected properly especially if you are using red alloy wire. My main advice is if you are using red alloy wire try putting the wire on top of the block breaker, not just leading to a block/the block breaker. IE, put the wire ON the block breaker itself, that should power it. If you're having problems with wires connecting that shouldn't use different color wire.