ASIC Troubleshooting Database
204+ error codes with step-by-step fixes for every major ASIC miner.
Most Common Issues
Antminer S19 – Temperature Too High (Temp1/Temp2 > 95°C)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro
Antminer S19 – Hashboard Not Detected (0 ASIC)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro
Antminer S9 – Fan Speed Error
Antminer S9, S9i, S9j, S9k
Whatsminer M30S – Power Supply Failure
Whatsminer M30S, M30S+, M30S++
Antminer S19 – Firmware Update Failed
Antminer S19, S19 Pro, S19j Pro, S19 XP, S21
Antminer S19 – Cannot Connect to Pool
All Antminer models
Bitaxe – Not Hashing / Zero Hashrate
Bitaxe Supra, Ultra, Gamma, GT, Hex
Antminer S21 – PSU Overcurrent Protection
Antminer S21, S21 Pro
All Error Codes
Antminer – 220V to 110V Wrong Connection
Antminer
Antminer – APW PSU Fan Failure
APW3++, APW7, APW9, APW12
Antminer – APW PSU Not Powering On
APW3++, APW7, APW9, APW9+, APW12
Antminer – Autotune Firmware Crash
Antminer
Antminer – BHB42 BMMiner Version Mismatch
Antminer
Antminer – CGMiner / BMMiner Crash
All Antminer models
Antminer – Control Board Beeping
All Antminer models with buzzer
Antminer – Control Board Clock Drift
Antminer
Antminer – Control Board Ethernet Port Failure
Antminer
Antminer – Custom Firmware Bricked Control Board
Antminer
Antminer – Factory Reset Procedure
Antminer
Antminer – Fan Blade Damage Noise
All Antminer models
Antminer – Fan RPM Too Low
All Antminer models
Antminer – Firmware Corrupted / Bricked
All Antminer models
Antminer – Green LED No Hashing
Antminer
Antminer – Hashboard Short Circuit
All Antminer models
Antminer – IP Report Button Not Working
Antminer
Antminer – LED Blinking Red/Green
All Antminer models
Antminer – LED Indicator Red Solid
All Antminer models
Antminer – Loose Heatsink Rattle
All Antminer models
Antminer – Power Surge Damage
All ASIC miners
Antminer – PSU Voltage Out of Range
All Antminer models with APW PSU
Antminer – RTC Battery Dead
Antminer
Antminer – SD Card Corruption
Antminer models using SD-based firmware (S9, L3+)
Antminer – SSH Connection Refused
All Antminer models
Antminer – SSH Connection Refused (Network)
Antminer
Antminer – Stratum V2 Connection Issue
Antminer
Antminer – Undervolting Too Aggressive
Antminer
Antminer – Web Interface Not Loading
All Antminer models
Antminer D9 – Temperature Too High
Antminer D9
Antminer KA3 – Temperature Too High
Antminer KA3
Antminer L3+ – Hashboard Not Detected
Antminer L3+
Antminer L3+ – Temperature Too High
Antminer L3+
Antminer L7 – Fan Speed Error
Antminer L7
Antminer L7 – Hashboard Not Detected
Antminer L7
Antminer L7 – Low Hashrate
Antminer L7
Antminer L7 – Power Cable Overheating
Antminer L7
Antminer L7 – Temperature Too High
Antminer L7
Antminer L7 – Vibration Noise
Antminer L7
Antminer S17 – Fan Speed Error
Antminer S17
Antminer S17 – Hashboard Not Detected
Antminer S17, S17 Pro, S17+, S17e
Antminer S17 – Low Hashrate
Antminer S17
Antminer S17 – Temperature Too High
Antminer S17, S17 Pro, S17+, S17e
Antminer S19 – 110V Insufficient Power
Antminer S19
Antminer S19 – Abnormal Fan Noise
Antminer S19, S19 Pro, S19j Pro
Antminer S19 – ASIC Chip Temperature Imbalance
Antminer S19, S19 Pro, S19j Pro
Antminer S19 – Cannot Connect to Pool
All Antminer models
Antminer S19 – Control Board Not Booting
Antminer S19, S19 Pro, S19j Pro, S19 XP
Antminer S19 – Control Board Power Connector Damage
Antminer S19
Antminer S19 – eMMC Failure
Antminer S19 series, S21 series (eMMC-based)
Antminer S19 – Fan Grinding Noise
All Antminer models with axial fans
Antminer S19 – Fan Speed Error
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro
Antminer S19 – Filesystem Full Error
Antminer S19
Antminer S19 – Firmware Update Failed
Antminer S19, S19 Pro, S19j Pro, S19 XP, S21
Antminer S19 – Hashboard Initialization Failure
Antminer S19, S19 Pro, S19j Pro, S19 XP
Antminer S19 – Hashboard Not Detected (0 ASIC)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro
Antminer S19 – Hashboard Voltage Error
Antminer S19, S19 Pro, S19j Pro
Antminer S19 – High Hardware Error Rate
Antminer S19
Antminer S19 – High Rejected Share Rate
Antminer S19
Antminer S19 – Inlet/Outlet Temperature Differential Too High
Antminer S19, S19 Pro, S19j Pro, S19 XP, S21
Antminer S19 – Kernel Log Errors
Antminer S19
Antminer S19 – Kernel Panic After OC
Antminer S19
Antminer S19 – Low Hashrate (Missing ASIC Chips)
Antminer S19, S19 Pro, S19j Pro, S19 XP
Antminer S19 – PSU Overcurrent Protection
Antminer S19
Antminer S19 – SD Card Firmware Flash Not Working
Antminer S19
Antminer S19 – Temp Sensor Failure
Antminer S19, S19 Pro, S19j Pro, S19 XP
Antminer S19 – Temperature Too High (Temp1/Temp2 > 95°C)
Antminer S19, S19 Pro, S19j Pro, S19 XP, S19k Pro
Antminer S19 Hydro – Coolant Temperature Too High
Antminer S19 Hydro, S19 Pro Hydro, S19 XP Hydro
Antminer S19 XP – Hashboard Not Detected
Antminer S19 XP
Antminer S19 XP – PSU Overheating
Antminer S19 XP
Antminer S19 XP – Temperature Too High
Antminer S19 XP
Antminer S19j Pro – Low Hashrate
Antminer S19j Pro
Antminer S19k Pro – Hashboard Not Detected
Antminer S19k Pro
Antminer S19k Pro – Temperature Too High
Antminer S19k Pro
Antminer S21 – ASIC Chip HW Errors
Antminer S21
Antminer S21 – Control Board Not Booting
Antminer S21
Antminer S21 – Fan Speed Error
Antminer S21
Antminer S21 – Firmware Compatibility Error
Antminer S21
Antminer S21 – Hashboard Not Detected
Antminer S21
Antminer S21 – High-Pitched Whine
Antminer S21, S21 Pro
Antminer S21 – Low Hashrate
Antminer S21
Antminer S21 – Power Cable Melting
Antminer S21
Antminer S21 – PSU Overcurrent Protection
Antminer S21, S21 Pro
Antminer S21 – Temperature Too High
Antminer S21, S21 Pro, S21 Hydro
Antminer S9 – Control Board Not Booting
Antminer S9
Antminer S9 – Fan Bearing Failure
Antminer S9, S9i, S9j
Antminer S9 – Fan Speed Error
Antminer S9, S9i, S9j, S9k
Antminer S9 – Firmware Downgrade Issues
Antminer S9
Antminer S9 – Hashboard Not Detected
Antminer S9, S9i, S9j
Antminer S9 – Low Hashrate
Antminer S9
Antminer S9 – PSU Not Detected
Antminer S9
Antminer S9 – PSU Voltage Drop
Antminer S9
Antminer S9 – Temperature Too High
Antminer S9, S9i, S9j, S9k, S9 SE
Antminer T19 – Fan Speed Error
Antminer T19
Antminer T19 – Hashboard Not Detected
Antminer T19
Antminer T19 – Low Hashrate
Antminer T19
Antminer T19 – Temperature Too High
Antminer T19
Antminer T21 – Fan Speed Error
Antminer T21
Antminer T21 – Hashboard Not Detected
Antminer T21
Antminer T21 – Low Hashrate
Antminer T21
Antminer T21 – Temperature Too High
Antminer T21
Antminer Z15 – Hashboard Not Detected
Antminer Z15
Antminer Z15 – Temperature Too High
Antminer Z15
ASIC Miner – API Not Responding
All ASIC miners
ASIC Miner – Circuit Breaker Tripping
ASIC Miner
ASIC Miner – Coil Whine from Hashboard
Various ASIC miners
ASIC Miner – DHCP Failure
All ASIC miners
ASIC Miner – DNS Resolution Failed
All ASIC miners
ASIC Miner – Ethernet Port Hardware Failure
ASIC Miner
ASIC Miner – Frequent Pool Disconnections
ASIC Miner
ASIC Miner – Mining Pool Authentication Failed
ASIC Miner
ASIC Miner – Network Not Found / No IP
All ASIC miners
ASIC Miner – Overclocking Instability
ASIC Miner
ASIC Miner – PDU Overload
ASIC Miner
ASIC Miner – PSU Buzzing Noise
All miners with external PSU
ASIC Miner – Thermal Paste Degradation
All ASIC miners older than 18-24 months
ASIC Miner – Underpowered PSU Symptoms
Any miner with insufficient PSU
ASIC Miner – VPN Interfering with Pool Connection
ASIC Miner
ASIC Miner – Web Interface Not Loading
ASIC Miner
ASIC Miner – Wrong Firmware Version Flashed
ASIC Miner
Avalon – AUC Controller Failure
Avalon
Avalon – AUC Controller Network Loss
Avalon
Avalon – AUC USB Connection Lost
Avalon
Avalon – Firmware Flash via AUC
Avalon
Avalon – PSU Incompatible Model
Avalon
Avalon 1166 – Fan Speed Error
Avalon 1166
Avalon 1166 – Hashboard Communication Error
Avalon 1166
Avalon 1166 – Hashboard Not Detected
Avalon 1166
Avalon 1166 – Low Hashrate
Avalon 1166
Avalon 1246 – AUC Communication Error
Avalon 1246
Avalon 1246 – AUC Overheating
Avalon 1246
Avalon 1246 – Fan Buzzing
Avalon 1246, 1166
Avalon 1246 – Fan Speed Error
Avalon 1246
Avalon 1246 – Firmware Flash Failure
Avalon 1246
Avalon 1246 – Hashboard Not Detected
Avalon 1246
Avalon 1246 – LED Error Pattern
Avalon 1246
Avalon 1246 – Low Hashrate
Avalon 1246
Avalon 1246 – PSU Not Detected
Avalon 1246
Avalon 1246 – Temperature Too High
Avalon 1246, Avalon 1166
Bitaxe – AxeOS Connection Issues
All Bitaxe models
Bitaxe – BM1366 Not Responding After Power Surge
Bitaxe
Bitaxe – ESP32 Crash Loop / Reboot Loop
All Bitaxe models (ESP32-S3 based)
Bitaxe – Not Hashing / Zero Hashrate
Bitaxe Supra, Ultra, Gamma, GT, Hex
Bitaxe – Overheating
All Bitaxe models
Bitaxe – Pool Rejected Shares High Rate
Bitaxe
Bitaxe GT – XT30 Connector Loose
Bitaxe GT
Bitaxe Hex – 12V Power Supply Not Compatible
Bitaxe Hex
Immersion Cooled Miner – Fluid Temperature Too High
Any immersion-cooled ASIC miner
Innosilicon – Firmware Recovery Mode
Innosilicon
Innosilicon A10 Pro – Fan Error
Innosilicon A10 Pro
Innosilicon A10 Pro – Low Hashrate
Innosilicon A10 Pro
Innosilicon T2T – Hashboard Not Detected
Innosilicon T2T
Innosilicon T2T – Network Not Found
Innosilicon T2T
Innosilicon T2T – PSU Compatibility
Innosilicon T2T
Innosilicon T3+ – Control Board Failure
Innosilicon T3+
Innosilicon T3+ – PSU Compatibility Issue
Innosilicon T3+
Innosilicon T3+ – Temperature Too High
Innosilicon T3+
NerdAxe – Firmware Update Issues
NerdAxe, NerdNOS
Nerdminer – Display Not Working
Nerdminer
NerdQAxe – Low Hashrate on One Chip
NerdQAxe
Whatsminer – Cannot Access Web Interface After Reset
Whatsminer
Whatsminer – Factory Reset via Button
Whatsminer
Whatsminer – Firmware Update via MinerTool
Whatsminer
Whatsminer – LED Status Code Reference
Whatsminer
Whatsminer – MinerTool Connection Timeout
Whatsminer
Whatsminer – MinerTool Diagnostic Codes
Whatsminer
Whatsminer – Network Configuration Reset
Whatsminer
Whatsminer M30S – Control Board Failure
Whatsminer M30S
Whatsminer M30S – Environmental Sensor Error
Whatsminer M30S
Whatsminer M30S – Fan Speed Error
Whatsminer M30S
Whatsminer M30S – Firmware Recovery Mode
Whatsminer M30S
Whatsminer M30S – Hashboard Not Detected
Whatsminer M30S
Whatsminer M30S – Hashrate Fluctuation
Whatsminer M30S
Whatsminer M30S – Internal PSU Board Failure
Whatsminer M30S
Whatsminer M30S – LED Fast Red Blink
Whatsminer M30S
Whatsminer M30S – LED Slow Red Blink
Whatsminer M30S
Whatsminer M30S – Low Hashrate
Whatsminer M30S
Whatsminer M30S – MinerTool Cannot Connect
Whatsminer M30S
Whatsminer M30S – Power Supply Failure
Whatsminer M30S, M30S+, M30S++
Whatsminer M30S – Rattling Noise
Whatsminer M30S, M30S+
Whatsminer M30S – Share Rejection Spike
Whatsminer M30S
Whatsminer M30S – Temperature Too High
Whatsminer M30S, M30S+, M30S++
Whatsminer M30S – Water Cooling Leak Detection
Whatsminer M30S
Whatsminer M50S – Control Board Not Responding
Whatsminer M50S
Whatsminer M50S – Fan Speed Error
Whatsminer M50S
Whatsminer M50S – Grinding Fan Noise
Whatsminer M50S, M50S+
Whatsminer M50S – Hashboard Error via MinerTool
Whatsminer M50S
Whatsminer M50S – Hashboard Not Detected
Whatsminer M50S
Whatsminer M50S – Low Hashrate
Whatsminer M50S
Whatsminer M50S – MinerTool Firmware Update Failed
Whatsminer M50S
Whatsminer M50S – Overclocking Instability
Whatsminer M50S
Whatsminer M50S – Power Limit Triggered
Whatsminer M50S
Whatsminer M50S – Power Supply Failure
Whatsminer M50S
Whatsminer M50S – Temperature Too High
Whatsminer M50S, M50S+, M50S++
Whatsminer M56S – Temperature Too High
Whatsminer M56S
Whatsminer M60S – Chip Bin Mismatch
Whatsminer M60S
Whatsminer M60S – Control Board Boot Loop
Whatsminer M60S
Whatsminer M60S – Fan Speed Error
Whatsminer M60S
Whatsminer M60S – Firmware Rollback Failed
Whatsminer M60S
Whatsminer M60S – Firmware Signature Verification Failed
Whatsminer M60S
Whatsminer M60S – Hashboard Not Detected
Whatsminer M60S
Whatsminer M60S – Power Supply Failure
Whatsminer M60S
Whatsminer M60S – PSU Efficiency Drop
Whatsminer M60S
Whatsminer M60S – Temperature Too High
Whatsminer M60S
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