Avalon Q stuck at 0 TH/s, "HASH board failure" after ~14 months – anyone fixed this?
Hi all,
My Avalon Q (bought June 2025, official firmware 25052801_14a19a2, never opened or modified, always Standard mode) suddenly stopped hashing a few weeks ago.
Symptoms:
• 0 TH/s, ~94 W at idle
• Dashboard: "ASIC Status: Error" / "HASH board failure" Fan and PSU status "Fine"
• Stuck in "Work: In Idle, Hash Board: 1"
• Full AC power cycle and API softon (returns success) don't help
From estats:
• Hashboard MCU responds (HBITemp/HBOTemp read ambient ~25 °C)
• No ASICs enumerated: PVT_T0[], PVT_V0[], Core[] empty, TMax[0], PLL0[0 0 0 0]
• ECHU[2], ECMM[4096]
• PS[0 1217 6 0 0 2500 94] (PSU fault bitmap 0)
Canaan support says it needs repair and pointed me to a service centre.
Questions:
1. Has anyone seen ECHU[2] / ECMM[4096] on an Avalon Q and knows what they mean?
2. Was it the hashboard (chip chain) or the PSU hash rail in your case?
3. What did repair cost you, and which EU repair centre would you recommend?
4. Anyone in the EU who bought from Mineshop.eu and had a fault after the Canaan warranty expired? They refused the EU 2-year legal guarantee, saying mining hardware is for "investment and commercial purposes" so consumer rights don't apply. Curious whether others got the same answer or managed to get it resolved (e.g. via the European Consumer Centre).
Happy to share full logs.
Thanks in advance!