End stop of the Y axis does not work. HELP!!!!!

[ludovicius]

Hello! Good Morning!
I'm from Argentina and I'm using a translator. I will give my best to explain what happens to the Geeetech pro B printer.

First, the printer worked fine.
Then the bed stopped working for a few minutes and then it worked again.
Then the motor of the blower stopped working, I changed the pololu A4988 and it worked again.
After the change of place poles, the x-axis inverts the direction and the "endstop" of the Y-axis stops working.
Now, it only works 1 pololu. (I'm waiting for 5 new pololus)
With this pololu I did the following tests:

1).- I've replaced the Y-axis "endstop" with the "endstop" X-axis to verify if it is the switch, but it still does not work.

2).- With a multimeter, I measure the continuity and that's fine.

3).-In the Repetier, in manual command, I press the button of "the house" so that all the axes are directed to the zero point. Then enter the command M119 and tell me the following:

X min endstop: triggered
Y min endstop: open
Z min endstop: triggered

4).-Here is the setup on the arduino:

// The pullups are needed if you directly connect a mechanical endswitch between the signal and ground pins.
const bool X_MIN_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
const bool Y_MIN_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
const bool Z_MIN_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
const bool X_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
const bool Y_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.
const bool Z_MAX_ENDSTOP_INVERTING = false; // set to true to invert the logic of the endstop.

5).-In the Repetier, manual command: home Y axis, the bed moves to the "endstop" and wants to continue advancing (skating) hitting the "endstop" a few seconds to stop.

6).- I've replaced the Y-axis A4988 with the x-axis A4988 and it does not change anything.

I do not know what to do!
I need help!!!

[William]

3).-In the Repetier, in manual command, I press the button of "the house" so that all the axes are directed to the zero point. Then enter the command M119 and tell me the following:

X min endstop: triggered
Y min endstop: open
Z min endstop: triggered
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Hi,according to this, I think the problems are in the mainboard circuit. Because the Y min endstop should be in triggered status when unplugging all endstops.So you should focus on checking the port of Y min endstop to see if something wrong in there or try to resolder a new port.