I just purchased my first skill stop machine. It is a is a Mizuho Taco Slot Machine with a 3 reel setup. I have searched and found operation manuals for the machine on the web, but for some reason i'm unable to correct an error code "H.E" w/ an associated "wait" icon on. I have tried the reset procedures, filling the hopper, & removing and cleaning the hopper. With the hopper full, the machine is either in program mode, or the hopper "auto" empties shooting coins out onto the floor. I cant seem to get it to "reset" back to game mode. Does anyone have any suggestions? Thank You