My autonomous lawn mower thread/blog

https://www.amazon.de/MAMMOTION-LUBA-AWD-3000-Lawnmower/dp/B0DR1GVSPG/ref=sr_1_1_sspa?crid=1SK882N6SFE70&dib=eyJ2IjoiMSJ9.fDlO29qaahJtj_JxTb6_ZLrV1LU1K8SQF5aLcjA08in5cBUDrMuKP2Z8vFSG-eqTBsucF-Zzj1rdPmzVy6cPxypkE2rUhzclE7_rNnDWfwaiMe_zXCcfw62tGMdkmYyUAhtpmwtm4zB21xCd57A2mAwXOs-oI9y2hMmOAdwax0h-qQJhCy44GX4rIxVWpBPRNg1JmI-tJdbfn94feBq71hgTQ_1M1L2r8qJXFXacrfc.qmt5ALPr3m1AuIZ6Lt_6F_SRq9fz5Ix2Z-Q5ACL3144&dib_tag=se&keywords=luba&qid=1747829876&sprefix=luba%2Caps%2C66&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1

Looks to be in stock.

Would you be able to create a test loop? I made one with 4-5 metres of cable, left, right and guide. I made it with spare connectors so I always have, but you could make one quick and nasty by twisting wires etc.

Connect that up to the charging station and see if you still have the error.

I had a similar issue and was about to start testing my wire in sections, but decided to try my test loop first.

The fault lights remained with my "perfect" test loop, so I began looking at the charging unit itself.

I later diagnosed it as a fault in the station PCB (some good videos online about doing this with a multimeter). Cost me €100 to get a new one, ultimately there was no issue with my boundary wire and all has been good since.

Update on this an absolute torture. Following day after i could not find any problem with the loop cable, the green light somehow came back and the mower worked away fine for a few days before stopping again, and again flashing blue light. So created a test loop with spare cable i have and got a green light so i am thinking ruling out an issue with the base station. As i said when i disconnected the guide wire, and connected it to one side and got the green light this i thought narrowed down the problem to one section of the loop wire. Next got multimetre and measured the resistance and got a huge ohms reading indicating a complete break. So again concentrating on the section where i thought the problem was going by the guide wire changing to one side, i cut the cable in the middle of this section ran my spare cable from this back to the base station and got my green light, so therefore again i think i now have it narrowed down to the other part of this section. So i pulled up all this section of cable, and bar pulling the cable apart in two spots from the force of pulling it up, found no other break. Fixed the spots i broke, connected all up again and again obviosly no green light.

Now here is where it gets really confusing i now went back again and same as previously i again in the same spot cut the cable in the middle of this section ran my spare cable from this back to the base station and got no green light this time. At this point still when i disconnect the guide wire, and connect it to one side i get the green light, and when i use the test cable i get a green light.

Next step i started pulling up the cable in the opposite direction where going by my first tests there should be no problem and again found no break, had done this all the way around to the base station, and again now it is getting more strange/headwrecking again, at this point when i disconnect the guide wire, and connect it to one side and i now get NO green light !!! So i have now pulled up hundreds of metres of cable down to about the last 150 metres, have found no break and am not expecting to find any.

When i get the multimetre and measure the resistance still shows a huge ohms reading indicating a complete break !!

Also i have put new crimping connector on one side where they could only be an issue as the other two wires (Guide and opposite side were giving a green light) so that should not be the problem, i have checked/sanded the connectors so no issue with corrosion.

Can anyone shed any light before i go and buy a ride on, and take the sledge to the husqvarna 430 !!!

Maybe its not getting a good contact on the spade connector, i.e. where it connects to the base station?

As well as the RF signal, the boundary wire should have around 28V DC. This might be worth checking to pinpoint the voltage drop.

It's also available directly from Luba website at the same price, so if it were me I'd buy direct from them.

Interestingly, Amazon.de now also seems to have 3000x in stock, which hasnt been available directly from Luba for months: