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Author Topic: Bitmain T21 190TH Warning code J1:2  (Read 659 times)
sebymyhay@yahoo.com (OP)
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Activity: 15
Merit: 10


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January 30, 2025, 04:09:53 AM
Merited by mikeywith (4), philipma1957 (3)
 #21

Hello, I found the issue

The ground wire was not connected to the ground in the fuse box but connected in the miner 3phase connection to the 5pin cable.
The ground wire was near the 3phase cables in the fuse box and was collecting "parasite electricity" and the PSU was collecting electricity thru the ground connection.
I unplug the ground wire from the adaptor for the miners cable and now is working fine.
(there is only 3phase + N there)

Thank you all,
philipma1957
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January 30, 2025, 04:42:12 PM
 #22

Hello, I found the issue

The ground wire was not connected to the ground in the fuse box but connected in the miner 3phase connection to the 5pin cable.
The ground wire was near the 3phase cables in the fuse box and was collecting "parasite electricity" and the PSU was collecting electricity thru the ground connection.
I unplug the ground wire from the adaptor for the miners cable and now is working fine.
(there is only 3phase + N there)

Thank you all,

Nice catch.

Thanks for follow up.

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 AltairTech.io    Miners  Parts 🖰 Accessories 
_______Based in Missouri, USA._________________Your One-Stop Shop for Bitcoin Mining Solutions_____________________Mining Farm Consulting__________
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mikeywith
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January 31, 2025, 01:50:52 AM
 #23

Hello, I found the issue

The ground wire was not connected to the ground in the fuse box but connected in the miner 3phase connection to the 5pin cable.
The ground wire was near the 3phase cables in the fuse box and was collecting "parasite electricity" and the PSU was collecting electricity thru the ground connection.
I unplug the ground wire from the adaptor for the miners cable and now is working fine.
(there is only 3phase + N there)

Thank you all,

Nice catch.

Thanks for follow up.

I sent him 4 merits for that follow-up, sometimes I randomly skim through different topics in the mining support section, and I see that the vast majority of topics go dormant very quietly without a final follow-up from the original poster. However, most topics contain valid answers and we know that most of them were able to solve their issues, but most people chose to walk away once they get what they came for. Huh

"History shows it is not possible to insulate yourself from the consequences of others holding money that is harder than yours"
ariancabef
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June 17, 2025, 02:24:53 PM
 #24

Thanks for this post and your feedback, I'm having a similar problem and will try your finding.

Hello, I found the issue

The ground wire was not connected to the ground in the fuse box but connected in the miner 3phase connection to the 5pin cable.
The ground wire was near the 3phase cables in the fuse box and was collecting "parasite electricity" and the PSU was collecting electricity thru the ground connection.
I unplug the ground wire from the adaptor for the miners cable and now is working fine.
(there is only 3phase + N there)

Thank you all,
philipma1957
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Activity: 4732
Merit: 11237


'The right to privacy matters'


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June 25, 2025, 02:07:48 PM
 #25

Thanks for this post and your feedback, I'm having a similar problem and will try your finding.

Hello, I found the issue

The ground wire was not connected to the ground in the fuse box but connected in the miner 3phase connection to the 5pin cable.
The ground wire was near the 3phase cables in the fuse box and was collecting "parasite electricity" and the PSU was collecting electricity thru the ground connection.
I unplug the ground wire from the adaptor for the miners cable and now is working fine.
(there is only 3phase + N there)

Thank you all,


let us know how it works for you.

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███████████▄▄█▀████▄███████████████
███████████████▄▄██████████████████

 AltairTech.io    Miners  Parts 🖰 Accessories 
_______Based in Missouri, USA._________________Your One-Stop Shop for Bitcoin Mining Solutions_____________________Mining Farm Consulting__________
.
.🛒SHOP NOW .
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