Need Help with My Used S9J Miner

I just got into mining and bought a used s9j from China via newegg. I thought it would be cool to mine and heat my place with some solar panels but now it's not working at all. When I turn it on, boards 1 and 2 have a red light but board 3 doesn’t. Then, the fault light blinks and the fans slow down... totally lost here.

Have you checked the FAQ on their site? There’s some useful info about the signal lights and recovery programs you can look into.

A quick test: try disconnecting the cable going to board 3. What does the GUI show? It should still try to mine unless that board is totally dead... And post your log here so we can help. Use code tags for easy reading.

Sounds like board 3 might be faulty or even overheating possibly. Check your miner's status dashboard. The kernel logs can reveal errors too. If you can, post the logs so we can see what's causing the issue.

The flashing fault light means there’s something wrong with board 3 or the power supply. Check your data cables too. If you can, try a different power supply or just run it with one or two boards to narrow it down.