I’m going step by step to resolve the problem I have with my limit switches

On the diagnostic screen there are four columns of LED’s representing the X, Y, Z, and A axes. I have connected all my limits as before when all was working normal and all limits / home working well and when I trigger manually any limit, the corresponding LED lights up and I get the “limit switch triggered” message.

However no LED lights up under the X column when I trigger the X axis limits although I get the “limit switch triggered” message. When I do that the LED’s light up under the other columns

Even when the CNC is turned OFF I can see on the computer screen all LED’s ON but non under the X axis. Is this normal ?

Also when I trigger the A axis single limit switch, the LED lights up but I get no message “limit switch triggered” neither I have to press the reset button. Is this normal ??

BTW, A & Y are slaved together

Attach your xml please.
Hood

I have verified all limits and home switches and they all working fine

I just like to know if it is normal to have on the diagnostic screen no LED's ON under the X axis

Here is my XML

Ok first you dont have A axis limits enabled so you will not get any limits working for the A, you have it set as a Home only, so you will only get the home LED working and because it is a Home Switch only you will not get a limit trip..
And yes as you have the X enabled and set to pin 13 you should see the limits for X (m1+, m1-) lighting when you press them. If they are not then it would seem you dont actually have them connected to pin 13 but another pin.
Hood

Thank you Hood, that provides some light to my puzzle and I will work on that

Would you know why when I press to home the Z axis it did home nicely despite that I dont see any LED's for X on the diagnostic screen?

Yes, because you would see a LED for the Z and not the X, you have the Z set as pin 11 and X pin 13 so if you home the Z the switch on pin 11 will be hit and the LED for Z will light.
Hood

Very sorry Hood, I meant the X axis. I can home the X axis nicely and when she goes to the other end (+) she hits the limit and stops

To me it seems that pin 13 is correct but why I dont see the LED on the diagnostic screen I dont understand.

Might not be, if you press the X switch do you see any of the other LEDs on the diagnostic screen light up?
Hood

Yes the LED's on the Y, Z and A light up and that is confusing to me

That to me would suggest that you have all of your limit switches wired into either pin 10, pin 11 or pin 12 and none on pin 13

Press the A and see what lights
Press the Z and see what lights
Press a the Y and see what lights
Hood