seen this before on apollo 13. replace the magnet. not an expensive item.
(have u fired the magnet in the test menu with a ball in hand ?) The only problem now is, that if u left the magnet on far too long and it got really hot, u may have buggered the board as well.)
use test menu to test magnet which will fire a short pulse, then go from there. it is likely the magnet would have been stuffed well before the board.
