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ERR_VOLT Critical

Antminer S19 – Hashboard Voltage Error

voltage domain error on chain

Critical — Immediate action required

Affected Models: Antminer S19, S19 Pro, S19j Pro

Symptoms

  • Voltage readings abnormal in kernel log
  • Hashboard fails to initialize
  • Multiple ASIC chips missing in one voltage domain

Step-by-Step Fix

1

Check the kernel log for specific voltage domain error messages.

2

Power off and inspect the hashboard for burnt or discolored voltage regulator components.

3

Verify PSU output voltage is within specification (12.0-12.5V).

4

Reseat all power and data cables.

5

Voltage domain errors typically require professional repair — BGA rework or VRM replacement.

When to Seek Professional Repair

If the steps above do not resolve the issue, or if you are not comfortable performing these repairs yourself, professional service is recommended. Attempting advanced repairs without proper equipment can cause further damage.

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Related Error Codes

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