My AMS Lite slot 4 will not sense any filament I put into it. The light won’t turn solid, the motors won’t turn on, but electricity is there. All the other slots work perfectly and the light on the fourth slot flashes, but does not detect filament. I tried opening it up to see if I was missing the magnet, but that was still there. I double checked to make sure that all the cables were secure (although the lights were working so this already wasn’t the case). My best guess is that something is wrong with the sensor magnet, but I checked and the round end went in first and the spring after. Maybe the sensor isn’t working? I really want to avoid buying another part without first having tried everything. Any ideas?
Swap the sensor with one of the other working units and see if the issue follows the sensor.
Thanks for the idea. I’ll do that as soon as I return from my weekend trip. Gotta sleep early to catch a flight. Thanks again. If anyone else responds I appreciate it and I will respond when I get back.
Same issue is also discussed here: AMS Lite A1 Slot 4 Keeps Failing
Ok so I’ve tried what you suggested. I swapped the slot 3 sensor (that worked fine) with the slot 4 sensor. I plugged them in and the slot 3 worked and the slot 4 didn’t. Then I tried swapping the slot 3 and 4 funnels. Again the slot 3 worked fine while the slot 4 failed. At this point I don’t even know. Could it be an electronic issue? the funnel parts seem fine. I think the motor is working but I haven’t been able to test it yet. Any other suggestions? Now since it’s not the funnel, the price of replacement has gone even further up.
I checked that thread, someone does have the same issue, but not fix or explanation. Thanks anyway.
I am having this issue too. We have even gone as far as completely replacing the 3/4 motor completely and slot 4 still isn’t working. Im wondering if it’s somehow in the spool holder part. we can’t even get it to load the filament at all. It seems like nothing is working just involving slot 4. 3 works perfectly fine. Im at a loss on how to fix it.
I have made an interesting discovery regarding this issue. So I was making SavoLab3D’s AMS Lite Mini and while I was testing it, I accidently switched the blue and white wire and the black and red wire. When I tested the slots, the fourth slot worked fine, but the first slot didn’t work. This makes me think it’s an issue with the slot on the motherboard. But that’s just my going theory. @HappyDays16 would you like to test this with yours to see if you get the same results?
These slots. I couldn’t think of what to call them.
I have solved my issue. The socket for the blue and white cable on the motherboard had a single bent pin. After straightening this pin the fourth AMS slot worked perfectly fine.
I’ve had the same problem, it turned out that one of connectors (purple, orange on above picture) was not fully seated. Sloppy work when assembling…?