Start with the symptom, then validate power input, network reachability, cooling, model identity, and firmware version. The error code reference below covers the most-reported codes.
Confirm the Ethernet link LED is on and the cable is seated. Verify the management PC is on the same subnet (for example 192.168.1.x). Check the DHCP server, then re-run IceRiver MinerTool to scan the local network. Press the IP button on the device for 1-2 seconds to display the address.
Check ambient temperature first - throttling above 35 degC is the leading cause. Inspect the rejected share rate, pool latency, hashboard detection in the web interface, and power input voltage. Short-term variation under ten percent is normal.
Improve intake airflow, remove dust from heatsinks and fans, and confirm both fans are running. Restore the fan curve to auto. Verify ambient temperature is below 35 degC and that nothing is blocking the exhaust path.
Confirm input voltage is between 170 V and 300 V AC. Reseat all PSU cables and reconnect the IEC cord. Try a known-good cable. If the indicator does not light, contact IceRiver support for warranty service.
Wait 1-2 minutes after power on. Confirm the miner has a valid IP via the IP button. Try a different browser or clear cookies. If the issue persists, perform a reset via the reset button and reconfigure.
Open the device, reseat hashboard data and power cables, then power on again. Run for 12 hours to confirm the average hashrate. If the board still does not register, contact warranty service rather than swapping parts yourself.
These are the most-reported IceRiver error codes and the recommended first-line response.
| Code | Meaning | First-line fix |
|---|---|---|
| 110/111/120/121 | Fan speed abnormality | Reseat fan cable. Replace fan with original-spec part if motor is damaged. |
| 140 | Fan overspeed | Improve ventilation. Check for fan obstruction. Replace if persistent. |
| 233-239 | Overtemperature protection | Clean dust from vents and heatsinks. Lower ambient temperature below 35 degC. Tighten copper bar screws. |
| 300-302 | Temperature sensor failure | Reseat hashboard cables. Replace defective sensor or hashboard via warranty. |
| 350-352 | Overheat protection triggered | Remove obstructions around vents. Improve airflow. Verify both fans are running. |
| 404 | Web interface 404 not found | Wait 1-2 minutes after power on. Reset the miner if the page still does not load. Re-flash firmware as last resort. |
If a firmware reflash becomes necessary, verify the exact model first and never interrupt the upgrade process once it begins.
Watch hands-on video guides covering setup, miner discovery, firmware updates, and full reviews of the IceRiver KS series.
End-to-end review of the IceRiver KS3M Kaspa miner: unboxing, hashrate verification, web interface and pool configuration.
Quick visual guide to the IceRiver setup workflow: discover the miner IP, log in, set the pool, and verify mining.
Walkthrough of IceRiver MinerTool for scanning, configuring, and managing fleets of KS series ASIC miners.
Step-by-step demonstration of safely applying official IceRiver firmware to KS series miners with stability checks.
