Antminer S19k Pro Repair
The Bitmain Antminer S19k Pro is a high-efficiency SHA-256 Bitcoin miner delivering 120 TH/s at just 2,760W — one of the most power-efficient air-cooled miners in the S19 generation. Built on the BM1366 ASIC chip platform, the S19k Pro is a workhorse for home miners and mid-scale operations alike. When hashboards fail, chips degrade, or fans throw errors, D-Central has the expertise and parts inventory to bring your S19k Pro back online fast.
Antminer S19k Pro Specifications
| Specification | Details |
|---|---|
| Algorithm | SHA-256 |
| Hashrate | 120 TH/s (±3%) |
| Power Consumption | 2,760W (±5%) |
| Energy Efficiency | 23 J/TH |
| ASIC Chip | BM1366 (BM1366BS / BM1366BP / BM1366AH) |
| Cooling | Air-cooled (4x 12038 fans) |
| Noise Level | 75 dB |
| Dimensions | 400 x 195 x 290 mm |
| Weight | 12.8 kg |
| Release Date | April 2023 |
Common Antminer S19k Pro Issues We Repair
Hashboard Failures
The S19k Pro uses three hashboards, each loaded with BM1366 ASIC chips. Failed or underperforming hashboards are the most common repair we see. Symptoms include missing hashboards in the miner dashboard, reduced hashrate on one or more boards, or abnormal chip temperatures. Our technicians diagnose at the chip level using thermal imaging and domain testing to identify exactly which BM1366 chips have failed, then replace them with tested OEM-spec components.
Fan Errors and Cooling Failures
Fan speed errors (often showing as “fan lost” or abnormal RPM readings) can shut down the entire unit as a thermal protection measure. We diagnose whether the issue is a failed fan motor, seized bearings, dust accumulation, or a control board fan header fault. We stock replacement 12038 fans and fan connectors for same-day turnaround on straightforward replacements.
ASIC Chip Damage
Individual BM1366 chips can fail from voltage spikes, thermal stress, or manufacturing defects. A single dead chip in a domain can drag down or disable the entire domain, reducing your hashrate significantly. We test each chip individually, desolder failed units with precision hot-air rework, and solder tested replacements — restoring full hashrate to the board.
Control Board Issues
Firmware corruption, Ethernet connectivity problems, and SD card failures can all render the S19k Pro unresponsive. We reflash firmware, repair or replace control boards, and resolve network configuration issues to get your miner communicating properly again.
Power Supply Problems
The S19k Pro requires stable, high-amperage DC power. Failing PSU capacitors, voltage rail instability, or damaged power connectors can cause intermittent shutdowns, hashboard detection failures, or complete unit failure. We test and repair or replace faulty power supply components.
Our Repair Process
- Intake & Diagnostic — We receive your unit, log its serial number, and run a full diagnostic including hashboard detection, chip temperature mapping, fan RPM verification, and power rail testing.
- Detailed Quote — You receive a transparent breakdown of what failed and what it costs to fix. No surprises, no hidden fees.
- Component-Level Repair — Our technicians perform precision rework: chip replacement, connector resoldering, thermal compound reapplication, and board cleaning as needed.
- Burn-In Testing — Every repaired unit runs under full load for a minimum burn-in period to verify stable hashrate, normal temperatures, and proper fan operation.
- Return Shipping — Your miner ships back fully tested, documented, and ready to hash.
Repair Pricing
Repair costs depend on the specific failure. Hashboard-level repairs, chip replacements, and full-unit diagnostics are each priced based on the work required. For a detailed estimate based on your miner’s symptoms, use our ASIC Repair Cost Estimator or contact our team directly.
Why D-Central for Your S19k Pro Repair
D-Central Technologies has been repairing ASIC miners since 2016 — longer than most companies in the space have existed. We are Bitcoin Mining Hackers: we understand these machines at the silicon level because we work with them every single day. Our Laval, Quebec repair facility is stocked with BM1366 chips, replacement fans, control boards, and every component your S19k Pro might need. As a Canadian company, we serve miners across North America with fast turnaround and transparent pricing. Every repair is backed by our post-repair warranty.
Frequently Asked Questions
How long does an Antminer S19k Pro repair take?
Most S19k Pro repairs are completed within 5-10 business days from the time we receive your unit. Simple fixes like fan replacements or firmware reflashes can be done in 1-2 days. Complex hashboard repairs involving multiple chip replacements may take up to two weeks.
What does an S19k Pro hashboard repair cost?
Hashboard repair costs vary depending on the number of failed chips and the extent of board damage. A single chip replacement is less expensive than a board with multiple failed domains. Use our ASIC Repair Cost Estimator for a ballpark figure, or send us your diagnostic details for an exact quote.
Can you repair an S19k Pro with all three hashboards failing?
Yes. We frequently repair units with multiple or all hashboards down. Each board is diagnosed and repaired independently. In cases where a board is beyond economical repair, we will advise you honestly and discuss replacement options.
Do you use original Bitmain parts?
We use OEM-spec BM1366 ASIC chips and genuine Bitmain components wherever possible. Every replacement part is tested before installation to ensure reliability and performance matching the original specifications.
What is the difference between the S19k Pro and the S19 Pro?
The S19k Pro uses the newer BM1366 chip (shared with the S19 XP), achieving 120 TH/s at 23 J/TH — significantly more efficient than the original S19 Pro (110 TH/s at 29.5 J/TH on BM1362 chips). The S19k Pro also has a different hashboard layout and cooling design, which affects repair procedures and parts compatibility.
Can I ship my S19k Pro from the United States?
Absolutely. We receive miners from across North America and internationally. Package your miner securely (original box preferred), include your contact details and a description of the issue, and ship to our Laval, Quebec facility. We handle customs documentation for cross-border returns.
Do you offer a warranty on repairs?
Yes. All D-Central repairs come with a post-repair warranty. If the same issue recurs within the warranty period, we will re-repair it at no additional cost.
My S19k Pro shows reduced hashrate but all boards are detected — can you fix this?
This is a common symptom of partially degraded ASIC chips or thermal issues. We use chip-level diagnostic tools to identify underperforming BM1366 chips and replace them individually, restoring your miner to its full 120 TH/s rated hashrate.
Get Your S19k Pro Back Online
Every hour your miner sits idle is hashrate lost to the network. D-Central’s repair team is ready to diagnose and fix your Antminer S19k Pro — whether it is a single fan error or a multi-board failure. Contact us today to start your repair, or use our ASIC Repair Cost Estimator to get an instant ballpark quote.