My Anet A8 z-axis motors won't go down.

Thank you very much for the video. My Anet A6, had the exact same problem. Thank you again.

for 12 months I have struggled with the issue reluctant to remove C45 but tonight in frustration I did it, wish I had done it 12 months ago, working fine now

I have same problem this discussion was really helpful. I have an auto leveler. The resistance was 11k so cap not bad. But with the auto leveler it was reading like it was always closed. It read .5v across 1 and 3 and if not close to surface it should be more like 5v. Still need to confirm it is auto level.

I had the same problem as you and thanks to your video and to your comment i could fix it, thank you very much!!

Had the same problem. Used a sharp-point solder iron, heated several time each end of C45 and GENTLY pulled it out (with the solder) util it fell. Now Z stop sensor works fine. Go trust a 1mm capacitor... Many thanks!

Thank you. I have been using it for a week. But now I have this problem. Thanks to you, I was able to solve the problem quickly. I removed the C45 capacitor.

Hey guys to fix this problem you have to remove the C45 capacitor. i did it on mine and worked like a champ. thank you.

I removed the c45 capacitor and all is fine! :) I had same problem! thanks to other youtubers comments! Grazieeee

Hi I have the same problem and I dont know how to repair that,please help me.

I know what's causing the problem. It's a bad C45 capacitor connected to the R39 resistor. If you use a multimeter and setting to ohms. Test across the capacitor or test the leads 1 and 3 on the z switch connector on the board. The reading should be 10k to 12k ohms. Mine reads at only 3k ohms, so my capacitor is bad. Now how do you fix it? A few methods I saw was to either reheat the capacitor leads with a soldering iron, replace the cap, or even pull out the capacitor and leave it empty, making the resistance go very high. Of course the easiest but most expensive method is just replace the whole board. hope this helps

Exactly same problem, remove c45 and fixed.

Removing c45 also worked for me

probably not a recommended method, but i removed capacitor c45, didnt have a soldering iron on hand so i VERY CAREFULLY crushed c5 with a pair of pliers, been fine since, but it would be better to replace it, or at least remove it with a soldering iron

does anyone with the tronxy p802 m with the same problem found the solution? i tried removing my c45 but nothing happened

I need help with this problem. I removed the c45 capacitor and the problem hasn't gone away. What else can I do to fix this?

Did you get it figure out? I have the same problem and it used to go away with a couple restarts/power reset, now the z axis wont home at all.

I read as many comments as I could stomach. Normally a person begging others for help is gracious enough to put his solution in the video details, this is customary here and other sites. It's kinda like not commenting in all caps or using flashing letters. I know that folks never change so of course I don't expect it.

what the hell. I hope this fixes mine.

i just put this together. same problem. it homed once now it keeps going up (Z axis) as if z is closed

Me too I have the same problem. I have buy a auto leveling sensor with my anet A8, and when I plug it the min end stop is now always off.... Is it a configuration problem?