When you’re spending thousands of dollars on mining hardware, the question that matters most isn’t how fast it hashes. It’s what happens if something goes wrong. A fan dies, a power supply fails, the box arrives damaged, or you simply change your mind. Warranty and return terms decide who pays and who waits.
This guide walks through how OneMiners handles warranties and returns based primarily on three pages published by the company: its Warranty Policy, Returns and Refunds page, and Terms and Conditions. We reviewed the published pages in October 2026 because the details matter and, in several places, the wording does not fully align. We also compare selected terms with Bitmain’s manufacturer warranty and a company-linked Medium field guide about U.S. ASIC hosting. The goal is not to decide which policy legally controls a particular order, but to show buyers where written clarification may be useful before paying.
This is general information, not legal or financial advice. Policies can change, so confirm everything in your own order documents.
The Short Version
OneMiners offers two warranty tracks. Machines hosted at its listed locations get a 7-year warranty that the policy says includes free repairs and parts. Machines shipped directly to you get a 12-month warranty against manufacturing defects.
Returns are where the published pages become less straightforward. The Returns and Refunds page says most items fall under a 14-day return policy and requires a Return Merchandise Authorization (RMA). For an item that is simply no longer wanted, however, the page says the buyer should contact OneMiners within 14 days and that an RMA and refund are subject to the company’s acceptance. The Terms and Conditions separately say that all sales are final except for damaged or defective items, but the same Terms also contain a Consumer Rights and Withdrawal section stating that consumers have a 14-day withdrawal right subject to applicable conditions and exceptions. Because those statements do not fully align, buyers should get the return terms for their particular order confirmed in writing before purchase.
OneMiners Warranty at a Glance
The 7-Year Hosted Warranty
OneMiners’ warranty policy says the company provides an “industry-leading 7-year full warranty” on miners hosted at its sites. It names the USA, Dubai, Norway, Finland, Ethiopia, Nigeria and China. The policy lists:
- Free repairs at dedicated repair centers
- No-cost spare parts, including fans, power supplies and cables
- No labor or diagnostic fees
It also lists services provided during the warranty for both hosted and shipped machines: remote diagnostics, real-time monitoring through the management console, 24/7 technical support, and firmware upgrades and maintenance.
A few things are worth noticing:
- Locations. OneMiners’ site lists more hosting locations than the seven named here, including Canada, Brazil, Czechia and Paraguay. The warranty policy doesn’t say whether those are covered. If you’re hosting somewhere not named, ask.
- No exclusions for hosted units. The policy lists none, which is generous on paper, but it also doesn’t define what happens in edge cases such as damage from a facility event. Ask how those are handled.
- How long 7 years is. An independent guide from Simple Mining, Which ASIC Should I Purchase?, says miners typically last three to five years and their economic life often ends sooner. A seven-year warranty therefore outlasts the period in which many machines stay profitable. That makes it a protection against hardware failure, not against falling margins.
The 12-Month Shipped Warranty
If you have a machine delivered to you, the policy says OneMiners “offers a standard 12-month warranty, unless otherwise specified by the manufacturer.” It covers repair for manufacturing defects and replacement of defective units when necessary.
This coverage comes with conditions. The policy says it’s valid only when miners are operated in accordance with official instructions, and it “may be voided due to damage from misuse, unauthorized modifications, or non-compliant operation.” It doesn’t define those terms. If you plan to overclock, undervolt, flash custom firmware or run the machine in a harsh environment, ask in writing whether any of that voids coverage.
How this relates to the manufacturer’s warranty
The warranty clause leaves room for a manufacturer’s terms, and the Terms and Conditions add that warranty claims “should be directed to manufacturers when applicable.” So it isn’t clear, from the pages alone, whether a claim on a shipped machine goes to OneMiners or to the maker.
For Bitmain machines, the manufacturer publishes its product warranty. It says:
- Coverage starts from the official sales shipment date, not necessarily the date the machine reaches you.
- New BTC miners (S19 and later) and new power supplies are generally covered for 365 days, subject to the sales contract. A separately bought control board is covered for 180 days.
- Repair tickets: Bitmain’s Product Warranty page says a newly created repair ticket is valid for 7 days and warns that an expired ticket may affect warranty service. A separate Bitmain repair-ticket instruction page says the customer should dispatch the product within 7 days and also refers to the repair site receiving the defective product within 15 days for warranty timing purposes. Because those instructions use different timing language, check the current repair instructions when filing a claim rather than relying only on one deadline.
- “Sending spares only (such as fans)” has no warranty.
- Out-of-warranty items can get a 15-day warranty after paying.
- The page states that all sales are final and no refund requests will be entertained.
That page was last updated on October 11, 2024, and it doesn’t cover resale transfers, proof of purchase, or who pays shipping. Two sensible questions follow. Does OneMiners’ 12 months start on your delivery date or on the manufacturer’s shipment date? And who handles the claim?
Returns and Refunds: What the Pages Say
The Returns page
OneMiners’ returns and refunds page says the store offers “a 14-day return policy on most items purchased.” Its main points:
- Defective, damaged or incorrect items: notify the company within 14 days to start a replacement or refund. Late notices may still be accepted at the company’s discretion.
- Condition: returned items must be in their original condition and packaging.
- Authorization: a Return Merchandise Authorization (RMA) code is required for all returns and must be obtained within the return window.
- Exchanges: permitted within 14 days without additional fees if the item is in original condition.
- Warranty exchanges: products under the 7-year warranty “can be exchanged in cases of breakage or malfunction.” The page’s example is a failed power supply replaced with a new one.
- Ineligible items: certain products, such as custom-made ones, can’t be returned, and the page refers to the Terms for the full list.
The Terms and Conditions
OneMiners’ terms and conditions are stricter in tone. They state: “All sales are final, including preorders and orders paid in installments.” Refunds or exchanges are offered only for items received damaged or defective, which must be reported within 14 days of receipt. They add:
- Pre-orders are non-refundable and non-cancellable once placed, except as required by law. A buyer may cancel for a full refund if a product is discontinued or materially different from what was ordered, and the company must give notice within five business days of learning of the change.
- Pre-order delays from manufacturers or suppliers “do not constitute grounds for a refund.”
- Hosting orders are non-refundable and governed by the hosting agreement.
- Compensation claims must be submitted within 30 days of the incident unless otherwise specified, or the right is forfeited.
- International buyers are responsible for customs duties and taxes.
- Governing law: U.S. law, with the courts of Texas having exclusive jurisdiction, though the terms say this doesn’t affect international customers’ rights under their local laws.
Where the Pages Disagree
The clearest inconsistency concerns returns. OneMiners’ Returns and Refunds page says most items are covered by a 14-day return policy. For unwanted items, the buyer is told to contact the company within that period, after which a Return Merchandise Authorization may be issued subject to OneMiners’ acceptance.
The Terms and Conditions contain different language. Their Refund and Exchange Policy says all sales are final, including pre-orders and installment orders, and limits refunds or exchanges to items received damaged or defective. Yet elsewhere on the same Terms page, a Consumer Rights and Withdrawal section says consumers have a right to withdraw within 14 days of receipt, subject to stated conditions and exceptions. The published Terms therefore contain wording that also needs to be read together, not just compared with the separate returns page.
There are similar points worth clarifying around hosting. The Terms describe a draft Hosting and Performance agreement with a standard 7-year warranty and at least 95% operational uptime, with compensation if stated performance standards are missed. Company-linked articles and hosting commentary sometimes refer to higher figures such as 98% uptime. Those marketing or planning figures should not be treated as substitutes for the SLA in the customer’s signed hosting agreement.
The shipped-warranty process also deserves confirmation. The Warranty Policy describes OneMiners as providing repairs and replacement when necessary, while the Terms say warranty claims should be directed to manufacturers “when applicable.” That leaves an important practical question: for your particular machine, does OneMiners manage the claim for you, or are you expected to work directly with Bitmain, MicroBT, Canaan, or another manufacturer?
None of these differences by themselves establish that a claim will be denied or that one interpretation will always control. They do mean that buyers should keep the order confirmation, warranty language, and hosting agreement that apply to their transaction and obtain written answers to any unclear terms before relying on them.
What the Pages Don’t Say
Across the three pages, these practical points aren’t stated:
- How to file a warranty claim, and the steps or contact for it
- Who pays shipping on repairs, replacements and returns
- Repair or replacement timelines for shipped machines
- The refund method and how long refunds take
- Restocking fees, beyond a mention that some refunds are “without restocking fees”
- Whether hosting fees are refunded if a machine fails or is returned
- Cancellation of orders that haven’t shipped, other than the pre-order rules
- How cryptocurrency payments are refunded
- Effective dates for any of the three documents
What to Do When Your Machine Arrives or Breaks
Because the window to report problems is short, a little discipline at the start helps a lot.
- Film the unboxing. Photograph the box, shipping label, serial number, and any damage before you open it.
- Inspect immediately. Check for missing parts, bent frames or damaged connectors.
- Report shipping problems promptly. For a damaged, defective, incomplete, or incorrect delivery, contact OneMiners within the stated 14-day period. Email can be useful because it gives you a dated written record, even if you also contact support another way.
- Confirm whether an RMA is required before returning anything. The Returns and Refunds page requires an RMA for returns. For a warranty repair, ask whether the process uses a OneMiners RMA, a manufacturer repair ticket, or another procedure before shipping the machine.
- For a hosted machine, contact support promptly and ask for the case or ticket reference, diagnosis, warranty status, and expected repair timeline in writing.
- For a hosted machine, open a ticket through support and ask for a reference number and an expected repair window.
- Keep records: invoices, order confirmations, payment proofs and every message.
- Mind the 30-day compensation window in the terms if you’re claiming for an incident.
Questions to Ask Before You Pay
- Is my machine hosted or shipped, and which warranty applies?
- Is my hosting location covered by the 7-year warranty?
- When does my warranty start, and does the 12 months run from delivery?
- Who handles a warranty claim, OneMiners or the manufacturer?
- What actions void the warranty, such as overclocking or custom firmware?
- Which governs, the 14-day return page or the “all sales are final” terms?
- Who pays shipping on a repair, replacement or return?
- How long does a typical repair take, such as a hashboard swap?
- What are the refund method and timing if a refund is approved?
- Are my payment terms, including installments or pre-orders, affected?
A field guide to U.S. ASIC hosting on Medium also recommends asking about practical repair turnaround, including how quickly a host can handle a hashboard failure. That is a useful question because having an on-site repair center does not by itself tell you whether parts are currently stocked or how long a repair will take. The article is company-linked: its author identifies an affiliation with OneMiners and its links include promotional tracking, so use it as practical hosting commentary rather than as an independent source for OneMiners’ contractual obligations.
Frequently Asked Questions
How long is the OneMiners warranty? The policy says 7 years for hosted miners at named locations and 12 months for miners shipped directly to customers.
What does the warranty cover? For hosted units, free repairs, spare parts such as fans, power supplies and cables, and no labor or diagnostic fees. For shipped units, repairs for manufacturing defects and replacement when necessary.
What can void the warranty? For shipped units, the policy says misuse, unauthorized modifications or non-compliant operation. It doesn’t define those terms.
Can I return a miner I changed my mind about? The published pages do not give one completely consistent answer. The Returns and Refunds page says most items have a 14-day return window and says unwanted-item returns may be accepted after you contact OneMiners and obtain an RMA. The Terms’ Refund and Exchange Policy says all sales are final except for damaged or defective items, while another section of the Terms refers to a 14-day consumer withdrawal right subject to conditions and exceptions. If the ability to change your mind is important, get written confirmation that specifically applies to your order before paying.
Are pre-orders refundable? The terms say they’re non-refundable and non-cancellable once placed, except as required by law or if the product is discontinued or materially different.
What if my machine arrives damaged? Report it in writing within 14 days of receipt with photos and your serial number, and obtain an RMA code.
How much do out-of-warranty repairs cost? The warranty policy says they typically range from $80 to $220, depending on the issue and parts.
The Bottom Line
OneMiners’ published warranty coverage is unusually long for hosted hardware: its Warranty Policy states seven years for miners hosted at the listed facilities, while shipped machines receive a standard 12-month warranty unless the manufacturer specifies otherwise. The main uncertainty is not the advertised warranty length but how several return, withdrawal, hosting, and claim procedures interact across the different published documents. Before buying, save copies of the terms that apply to your order, confirm whether your miner will be hosted or shipped, ask who handles warranty claims and shipping costs, and get any important return or uptime commitments in writing. If a machine arrives damaged or defective, document it immediately and report it within the stated 14-day period.
Sources and Further Reading
- Warranty Policy — OneMiners
- Returns and Refunds — OneMiners
- Terms and Conditions — OneMiners
- Where Smart Bitcoin Miners Host in America: A Field Guide to US ASIC Hosting — Medium
- Product Warranty — Bitmain Support
- Which ASIC Should I Purchase? — Simple Mining
#OneMiners #OneMinersWarranty #ASICMining #BitcoinMining #MiningHosting #CryptoMining #ReturnPolicy #CryptoDueDiligence
