785pi Will not turn on...nothing works

1) test the outlet wall, put some desk lamp, and see if turn ON the light, is does the circuit is o.k if NOT the circuite is missing , Reset The c.breaker from your house or replace the blown fuse.
2) if everything is o.k, turn ON the treadmill, if does work test the fuse blown y/o reset the c.breaker see the block diagram +diagram
3) test the main switch for loose wires, or bad contacts, or faulty swithc.
4) see any wires loose, maybe broken, or break, tight very well, see if some animal byte some wires connector. repair and TURN ON again.
5) adjust the REED switch, see the diagram clean it, tight the wires connector well.
Try again. God bless lyou