select your fav button on the machine (cept fer the pause/cancel button) and do this to put that mutha in test mode:
Push dat button fer 5 seconds,release it fer five seconds
push it again fer five mo seconds and realease it fer five seconds push it agin fer 5 seconds. If ya did it right ya should get an 88 in dat sisplay winder.
This will give you the falut code which i suspect is the fuse. Check the fuse for continuity and replace it if open. Retry