Avalon A1346 Repair — Professional ASIC Repair by D-Central
The Canaan Avalon A1346 is a SHA-256 Bitcoin miner delivering approximately 110 TH/s at around 3,300W — a solid efficiency figure for Canaan’s next-generation Avalon platform. Built on Canaan’s proprietary ASIC chip architecture with a modular hashboard design, the A1346 represents Canaan’s push into competitive mid-range mining performance. But like every high-power density ASIC, the A1346 is not immune to hardware failures — and when a machine pulling 3.3 kW goes down, every idle hour costs you sats.
D-Central Technologies has been repairing ASIC miners since 2016. As Canada’s leading Bitcoin mining repair shop — the original Bitcoin Mining Hackers — we have hands-on experience with the full Canaan Avalon lineup from the 1047 through the latest A-series models. Our technicians understand Avalon’s unique modular architecture, the controller-to-hashboard communication protocol, the thermal management design, and the diagnostic firmware tools that separate a quick fix from a board-level rebuild.
Avalon A1346 Specifications
| Specification | Details |
|---|---|
| Algorithm | SHA-256 (Bitcoin, Bitcoin Cash) |
| Hashrate | ~110 TH/s |
| Power Consumption | ~3,300W (±5%) |
| Efficiency | ~30 J/TH |
| ASIC Chip | Canaan proprietary (A13 series) |
| Hashboards | 3 hashboards per unit |
| Control Board | Canaan AUC (Avalon USB Converter) controller |
| Input Voltage | 200–240V AC |
| Cooling | Air-cooled (dual fan) |
| Manufacturer | Canaan Creative (Avalon series) |
| Operating Temperature | 0°C to 40°C |
Common Avalon A1346 Issues and Symptoms
The A1346’s high power draw and dense chip layout mean failures can escalate quickly if not addressed. Here are the most common issues we diagnose and repair at D-Central:
Control Board Failures
The Avalon controller board manages communication between the hashboards and your mining pool. When it fails, symptoms include the miner not being detected by the controller software (CGMiner or Avalon management tools), intermittent hashboard disconnections, network communication drops, and complete failure to initialize. Canaan’s AUC-based architecture means the control board is central to the entire operational chain — a single controller fault can take all three hashboards offline simultaneously. Common root causes include firmware corruption, flash memory degradation, damaged communication interfaces, and voltage regulator failures on the controller board itself.
Fan Issues and Cooling Failures
At 3,300W power draw, the A1346 generates substantial heat that must be continuously evacuated. Fan failures are among the most common and most dangerous issues — a single degraded fan can push chip temperatures past safety thresholds within minutes. Symptoms include abnormal fan speed readings in the dashboard, excessive noise from worn bearings, fan error codes triggering automatic shutdowns, and visibly slower fan rotation. The A1346’s thermal protection firmware will shut the unit down if fan RPM drops below the minimum safe threshold, which is the right behavior — but it means a fan failure takes your entire miner offline.
Overheating and Thermal Shutdowns
Beyond fan failures, overheating can stem from degraded thermal compound between the ASIC chips and heatsinks, dust accumulation blocking airflow paths, ambient temperature exceeding the 40°C operating limit, or inadequate ventilation in the mining environment. The A1346 will report high-temperature warnings and eventually trigger a protective shutdown. Repeated thermal cycling — heating up, shutting down, cooling, restarting — accelerates solder joint fatigue on the hashboard and can cause secondary chip failures if the root thermal issue is not resolved.
Hashboard Chip Failures
Individual ASIC chip failures on the A1346 hashboards manifest as reduced hashrate on one or more boards, the controller reporting fewer chips than expected, or entire voltage domains going offline. Root causes include thermal stress from inadequate cooling, voltage spikes from unstable power supply, manufacturing defects that surface after burn-in, and solder joint degradation from thermal cycling. Because Avalon hashboards use a daisy-chained chip communication architecture, a single dead chip can disrupt the signal path and cause downstream chips to appear offline as well — making accurate diagnosis critical before any repair attempt.
Power Supply and Power Delivery Issues
The A1346 requires a stable, high-capacity power supply delivering clean power at 200–240V AC. Running on an undersized PSU, experiencing voltage sags or surges, or using damaged power cables can cause hashrate instability, hashboard detection failures, and progressive component damage. Canaan’s Avalon miners are particularly sensitive to power quality — voltage ripple that might be tolerable on other platforms can cause chip communication errors and false fault detection on the Avalon architecture.
Our Repair Process
Every Avalon A1346 that arrives at our Laval, Quebec facility goes through a systematic repair workflow designed to maximize uptime and minimize cost:
1. Intake and Visual Inspection
We log your unit, photograph its condition, and perform a thorough visual inspection for obvious damage — burnt components, corroded connectors, physical impact damage, dust accumulation, and heatsink condition.
2. Full Diagnostic Testing
We power up the unit on our test bench with calibrated power supplies and run complete diagnostics: chip enumeration on each hashboard, voltage domain measurements, temperature sensor validation, fan speed testing, controller board communication checks, and firmware verification. We use Canaan’s diagnostic tools alongside our own test procedures to identify every fault — not just the obvious one.
3. Detailed Quote
You receive a clear breakdown of what is wrong, what needs to be replaced or repaired, the cost, and the estimated turnaround time. No surprises. You approve the repair before we touch a soldering iron.
4. Board-Level Repair
Our technicians perform component-level repairs: ASIC chip replacement, voltage regulator repair, signal trace repair, thermal compound reapplication, heatsink reattachment, controller board component swaps, fan replacement, and connector repair. We use quality replacement components and professional rework stations calibrated for Avalon board specifications.
5. Post-Repair Testing
Every repaired board is tested on our test fixtures — once immediately after repair and again after a cooling period — to confirm stable operation. The full unit is then run for an extended burn-in period to verify sustained hashrate near the rated ~110 TH/s, stable temperatures, and correct chip enumeration across all three hashboards.
6. Return Shipping
Your repaired A1346 is securely packaged and shipped back to you with documentation of all work performed.
Repair Pricing
Avalon A1346 repair costs range from $65 to $300 CAD depending on the nature and extent of the fault. A diagnostic assessment starts at $65 CAD and is always applied toward the repair cost if you proceed. Simple repairs like fan replacements or firmware recovery cost less than complex multi-chip hashboard repairs.
| Service | CAD Price Range |
|---|---|
| Full Unit Diagnostics | $65 |
| Fan Replacement | $50 – $100 |
| Firmware Recovery | $50 – $150 |
| Control Board Repair | $100 – $250 |
| Hashboard Repair (Level 1 — basic components) | $95 |
| Hashboard Repair (Level 2 — chip replacement) | $145 |
| Hashboard Repair (Level 3 — complex BGA/trace work) | $195 – $300 |
Diagnostic fees are always applied toward repair costs — you never pay twice. If the board is unrecoverable, you only pay the diagnostic fee. For a preliminary estimate, use our ASIC Repair Cost Estimator.
Why D-Central for Avalon A1346 Repair
8+ years of ASIC repair experience. We have been repairing Bitcoin miners since 2016 — across every manufacturer and every generation. Canaan’s Avalon architecture is one we know well, from the 1047 through the latest A-series platforms.
Full Avalon platform expertise. We understand the unique aspects of Canaan’s modular design — the AUC controller architecture, the hashboard communication protocol, and the chip layout that differentiates Avalon from Bitmain and MicroBT platforms. This is not guesswork.
Genuine parts and professional equipment. We maintain stock of Avalon-compatible components and use professional rework stations calibrated for Canaan’s board specifications. No improvised fixes — proper repairs with proper parts.
Canadian quality, North American turnaround. Our repair facility is in Laval, Quebec. No shipping your miner overseas. No customs delays. Fast, transparent service from a Canadian company you can call at 1-855-753-9997.
Transparent process. Full diagnostic report and quoted price before any repair begins. We document everything. No hidden charges.
3-month warranty on repairs. Every repair we perform comes with a 3-month warranty on the work done. If the same issue recurs within the warranty period, we make it right at no additional cost.
Frequently Asked Questions
What is the typical turnaround time for an Avalon A1346 repair?
Most A1346 repairs are completed within 5-10 business days after we receive your unit. Simple issues like fan replacements or firmware recovery can be done in 1-2 days. Complex hashboard repairs involving chip replacement may take up to 2 weeks depending on parts availability. We provide an estimated timeline with your quote.
Do you offer a warranty on Avalon A1346 repairs?
Yes. All repairs performed by D-Central include a 3-month warranty covering the specific work done. If the same fault recurs within the warranty period, we repair it again at no additional cost. The warranty covers our workmanship and the replacement components we install.
How do I ship my Avalon A1346 to D-Central for repair?
Contact us first to initiate a repair request. We will provide shipping instructions and our facility address in Laval, Quebec. Pack your miner securely — original packaging is ideal, or use a sturdy box with ample foam padding. Remove the PSU unless instructed otherwise. Include a note describing the symptoms you have observed.
How much does an Avalon A1346 repair typically cost?
Costs depend on the diagnosis. Fan replacements run $50-$100. Control board repairs typically range $100-$250. Hashboard repairs range from $95 for basic component swaps to $300 for complex chip-level work. We always provide an exact quote after diagnostics — you approve the cost before we proceed. Use our ASIC Repair Cost Estimator for a preliminary estimate.
Should I attempt to repair my Avalon A1346 myself?
Avalon miners have a unique modular architecture that differs significantly from Bitmain and MicroBT platforms. The chip communication protocol, controller board design, and diagnostic approach are all Canaan-specific. Unless you have professional rework equipment, Avalon-specific diagnostic tools, and experience with Canaan’s hardware platform, we recommend professional repair. Improper repair attempts can cause additional damage — particularly to the signal chain on the hashboards.
Can you repair individual A1346 hashboards, or only full units?
Both. You can send a single hashboard for repair if you have already isolated the faulty board, or send the complete miner and let our diagnostics identify the problem. We also sell replacement components if you prefer a swap rather than a repair.
My A1346 keeps shutting down due to overheating — is it a fan issue or something else?
Thermal shutdowns on the A1346 can have multiple root causes: failed or degraded fans, clogged air intake, degraded thermal compound, ambient temperature too high, or even a hashboard-level fault causing excessive heat generation in a specific area. Our diagnostics check all of these systematically — we measure fan RPM, inspect thermal paste condition, run thermal imaging, and test each hashboard individually to isolate the heat source.
Get Your Avalon A1346 Back Online
Every hour your A1346 is down costs you hashrate and sats. D-Central has the expertise, the parts, and the process to get your Avalon miner back to its full ~110 TH/s as fast as possible. We are the Bitcoin Mining Hackers — this is what we do.
Contact D-Central for a repair quote or call us at 1-855-753-9997.
Looking for repair information on other models? Visit our ASIC Repair hub for the full list of supported miners, or check our Antminer Error Code Reference and Whatsminer Error Code Reference for diagnostic guidance.