An Antminer warranty check should answer a specific question: what does the manufacturer’s record say about the exact machine you are evaluating? A model name, a seller’s statement or a screenshot from another unit is not enough. Match the serial number to the physical miner first, then record the lookup result and any unresolved differences.
This guide explains a practical verification workflow, not a promise that a particular miner qualifies for free repair. It contains no customer serial numbers or claimed live warranty results. The cover uses an illustrative product photograph, not a machine inspected for this article.
Start with the unit, not the product listing
A product listing describes a model or a configurable offer. A serial number identifies the individual unit you need to check. Two machines with the same model and advertised hashrate can arrive through different orders and have different histories.
BITMAIN’s serial-number retrieval guide says the label location depends on the model; the miner exterior and original packaging are places to look. Its order-based retrieval route is limited to orders belonging to the signed-in account. A reseller purchase therefore may require the seller’s help rather than appearing in your own BITMAIN account.
Before entering anything, photograph the unit label clearly enough to distinguish similar characters. Compare it with the available packaging and handover record. Do not replace a damaged label with a guessed identifier, and do not publish the full serial in an open sales group. Keep the original evidence in a restricted file and share it privately with the relevant supplier or manufacturer.
| Identifier | Purpose in your check | Mistake to avoid |
|---|---|---|
| Miner serial number | Connect the individual machine to the manufacturer lookup | Entering a serial copied from a different unit |
| Model and hashrate | Confirm that the offered specification matches the machine being documented | Treating the model name as a unique identifier |
| Purchase or order reference | Find the transaction and supporting paperwork | Assuming an order reference is the miner serial |
| Pool worker name | Connect operational monitoring to your own asset record | Using a worker name as warranty evidence |
| Replacement-unit reference | Explain a documented change of physical identity | Overwriting the old serial without a history |
For fleet operations, connect the private serial record to the naming scheme in our mining worker and asset-register guide. Keep those fields separate: an operational label can change without creating a new physical machine.
Run the check from the official entry point
BITMAIN’s warranty-check instructions direct users to its warranty lookup portal, where a serial number is submitted. Use that official link rather than an imitation page or a screenshot-only claim.
A useful checking sequence is:
- Open the official portal and confirm the domain before submitting the identifier.
- Enter the serial from your verified label record. Recheck characters before retrying a failed lookup.
- Read the result as displayed. Preserve any stated dates, status and explanatory message without paraphrasing away a limitation.
- Save a dated record containing the submitted serial, the result and the page address. Record the timezone if several teams will use the evidence.
- Compare the result with the offered unit and the documents supplied for that unit. Mark disagreements as unresolved, not as an automatic pass.
This is an editorial checking procedure. We have not submitted a real customer serial to demonstrate it. The portal interface may change, so follow its current prompts instead of relying on an old menu screenshot.
Read dates without inventing a new warranty period
BITMAIN’s product warranty policy ties the warranty period to the official sales shipment date and makes the sales contract controlling. Its published categories are not one universal duration for every miner and component. Do not apply a generic 180-day or 365-day assumption to an unverified unit.
Separate three pieces of information in your notes: what the portal returned, what the applicable purchase documents say, and what the seller is separately offering. A seller’s additional service commitment needs its own written scope, contact and procedure. It should not be presented as though it were automatically the manufacturer’s coverage.
A recent resale invoice alone does not establish a fresh manufacturer warranty start date. Likewise, a remaining period shown by a lookup does not explain the cause of a fault or settle whether a particular repair will be accepted. Ask the responsible service provider about the actual case before promising an outcome to a buyer.
If you are still comparing offers, use the broader ASIC quotation checklist for model, condition and delivery terms. This serial check is a unit-level evidence step, not a replacement for that commercial review.
Handle missing or conflicting results methodically
A missing result is an information gap. It is not sufficient evidence, by itself, that the unit is counterfeit, covered or out of warranty. Preserve the exact message and work through the identity problem before drawing a conclusion.
| What you observe | Next useful check | What to record meanwhile |
|---|---|---|
| No result or input error | Recheck the label transcription and official page address | Exact message, checked time and submitted identifier |
| Result differs from seller evidence | Compare the serial and date on each record; request clarification | Both records and the unresolved difference |
| Box and machine identifiers differ | Ask for the handover or replacement history | Which identifier came from which physical item |
| Seller provides only a model-wide statement | Request evidence tied to the proposed unit | Unit-specific warranty evidence still pending |
| Repair returned a replacement | Reconcile the old and new identifiers with repair paperwork | A linked history rather than a deleted old record |
For a support request, prepare a short factual bundle: model, serial, readable label photo, purchase reference, lookup timestamp, exact result and the specific question you need answered. If the issue concerns a fault, describe the symptom separately from the warranty question. Never include account passwords, wallet seed phrases or unrelated customer documents.
Use a simple status such as “identity checked, warranty clarification pending” rather than a green approval label while the discrepancy remains open. Assign one person to follow up and preserve the response beside the original evidence. This avoids a different operator repeating the same check without knowing why the first result was questioned.
Preserve the chain after a repair or replacement
BITMAIN’s repair-package warranty statement guide describes old and replacement serial numbers in repair-ticket item details and a downloadable statement. Where such documentation exists, use it to connect the returned item to the unit originally sent away.
In your own record, retain both identities with a dated change event. Attach the repair reference and note who verified the returned label. Then update the active asset field and any internal monitoring mapping. Avoid editing a historic inspection record to make it look as though the replacement serial was present all along.
A practical completion record contains the current serial, evidence location, checked date, unresolved questions and the person responsible for the next step. It is a traceable handover, not a guarantee of future repair acceptance.
Ask for the evidence before deciding
When requesting an Antminer quotation, specify the model, hashrate, condition and intended batch. Ask when unit-specific serial evidence will be available and which party handles warranty questions. If individual units have not yet been allocated, record that limitation instead of accepting a generic screenshot as a completed check.
For an existing LeedMiner inquiry, contact our team with the quotation reference and the detail you need clarified. Send full serial evidence privately. Keep the commercial offer, manufacturer lookup and any separate seller service commitment distinguishable in the written response.
