Troubleshooting for Antminer: Common Problems Caused by External Reasons

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Troubleshooting for Antminer Common External Problems IMG 01

This is truouleshooting for Antminer common problems. Besides the suggestions in Tutorial: General Mining Guide & TroubleShoot for Antminer Models, here are some more troubleshooting ways.

 

Problem 1:

  • Insufficient hashrate;
  • Hashboard offline;
  • Pool connection failed

Probable external causes: grounding problem, electric leakage

Solutions: ask your electrician to conduct grounding

 

Problem 2:

  • Miner automatic restart;
  • Unstable hashrate;
  • Aforesaid problems occur randomly

Probable external cause: network problem

Solutions: ask network engineer to screen possible causes

 

Problem 3: miner keeps restarting

Probable external causes and solutions:

  • Low voltage: ask electrician to screen possible causes
  • Electric leakage: ask your electrician to conduct grounding
  • Hashboard damaged: request for warranty repair
  • Control board damaged: request for warranty repair

 

Problem 4: Undesirable environment

Probable external causes: dust, hot temperature, high humidity, high salinity

Solutions: create environment with better air quality

 

Problem 5:

  • Insufficient hashrate;
  • Hashboard offline;
  • No hashrate

Probable external causes: low temperature less than 5℃

Solutions: increase ambient temperature

 

Problem 6: power off accidentally during firmware upgrading; when powered on, the miner doesn’t work.

Reason: control board damaged due to power off in the upgrading process.

Solution: request for warranty repair

 

Problem 7: stay on the same page during upgrading without auto jumping

Probable external causes: crash during upgrading, maybe the problem of browser with IE kernel

Solutions: Firefox, Google Chrome are recommended.

 

Problem 8: cannot power on, all lights are off and the fan doesn’t run when connected to the power supply.

Solutions:

  1. Replace power supply. If the problem still exists, try next step;
  2. Only supply power for control board, if the problem still exists, try next step;
  3. Only supply power for control board and unplug all cables on it; if the problem still exists, try next step;
  4. Then it is confirmed it’s the problem of short circuit of the control board, request for warranty repair.

 

The following troubleshooting is about analysis and solutions on miner status lights. Background info:

  • Red light: fault; Green light: run
  • Normal: green light flashes, red light is off.

Antminer S9 Hydro Water Cooling Bitcoin Miner IMG 12

 

Problem 9: red light flashes

Possible causes and solutions:

  • High temperature -> lower the temperature of the miners.
  • Disconnection from network -> check the network and reconnect.

 

Problem 10: green light is always on

Possible causes and solutions:

 

Problem 11: both red light and green light are off

Possible causes and solutions:

  • The fan is broken -> exchange the fan or request for warranty repair.

 

Problem 12: red light flashes and green light is off

Possible causes and solutions:

  • IP conflict -> reset miners and set all miners as DHCP.
  • IP duplication (one static and one dynamic) -> set all as static IP address or DHCP.

 

The following troubleshooting is about analysis and solutions on network port light. Background knowledge:

  • Normal: Yellow light is always on, green light flashes

Evaluation on Antminer L3++ Litecoin Miner IMG 17

 

Problem 13: both the yellow light and green light are off

Possible causes and solutions:

  • Network cable is not plugged properly -> plug the network cable again
  • Control board damaged -> return to manufacturer for repairing
  • Router or switch is not powered on -> power on the router or switch

 

Further reading

Series articles on troubleshooting for Antminer at EastShore: