There is not a lot of troubleshooting info in the manual for the 880 S. The console on ours is not working. Changed batteries - nothing. Checked the cable/wire harness to make sure it had not come unplugged. Wasted time taking it apart. Is there anything else that could be causing the console to not work at all? I'm afraid if I purchase a new console, the problem will turn out not to be the console but something else in the machine.