geetech a10t

[fanildean]

so I have a geeetech a10 t same as the a10 just more colours

I just put a BL touch on it and im getting it ready to print.

BUT two issues one the z axis stop switch is always lighted now but doesn't seem to work

and two once i set it to auto home it does zx and y axis fine but once it goes to z it hits the heated bed and begins to grind.

Any ideas how whats going on ..thanks..