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ERR_TEMP_HIGH Critical

Antminer T21 – Temperature Too High

over max temp

Critical — Immediate action required

Affected Models: Antminer T21

Symptoms

  • Auto shutdown due to overheating
  • Hashboard temps above 90°C
  • Fan speed maxed out

Step-by-Step Fix

1

Power off immediately and wait for cooling.

2

Blow out all dust with compressed air.

3

Verify room temperature is below 35°C.

4

Check and replace any failed fans.

5

Inspect and reapply thermal paste if dried.

Related Error Codes

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