Error codes, LED patterns, and troubleshooting reference documents
Complete diagnostic reference for Antminer error codes, LED patterns, and kernel log messages. Covers S9, S17, S19, and S21 series with step-by-step troubleshooting for hashboard, temperature, power, network, firmware, and ASIC chip errors.
Move from the failure symptom to the right replacement category before browsing the full parts catalog.
Last reviewed June 20, 2026.
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