When you buy a discontinued drive from a surplus dealer, the manufacturer is not part of the transaction. The warranty you get is the supplier's, it is shorter than a manufacturer's, and its scope is narrower than most buyers assume. None of that makes it a bad deal — it makes it a deal you should read.
What you are actually getting
New / OEM through an authorised channel. The manufacturer's own warranty, typically twelve to twenty-four months from delivery, covering defects in material and workmanship, usually return-to-base.
New surplus. A supplier warranty, commonly six to twelve months. The part is unused, so the failure modes are storage-related (dried electrolytics, corroded contacts) or latent manufacturing defects. Good suppliers on discontinued stock will match a manufacturer's term because they know their stock.
Refurbished. A supplier warranty, commonly six to twenty-four months, and this is where the term is most meaningful: the supplier did work on the unit and is standing behind that work. A refurbisher offering twenty-four months is telling you something real about their process.
Used / tested. Thirty days to six months, sometimes a functional guarantee on arrival only. Priced accordingly.
What a supplier warranty normally covers
Read for these four boundaries, because they are where the disagreements happen.
Return to base. Almost universal. The supplier repairs or replaces the part; you pay to get it to them and they pay to get it back, or you split it. Very few secondary-market suppliers will pay for on-site labour.
Consequential loss is excluded. If a refurbished drive fails and the line stops for a shift, the warranty covers the drive, not the shift. This is standard commercial practice across the industry, including from manufacturers, and it is not negotiable at spare-parts prices. If you need the line covered, the instrument for that is a spare on the shelf, not a warranty clause.
Correct application is your responsibility. A warranty covers the part failing; it does not cover the part being wrong for the duty. Sizing, environment and commissioning are yours.
Tamper and installation conditions. Opening the unit, removing a seal, or installing outside the rated conditions voids most supplier warranties. If you intend to open it for inspection, say so before you order.
The questions to ask before ordering
Five, and they take one line each in a request:
- How long, from what date? Delivery date or invoice date; they can differ by weeks on a slow shipment.
- Repair, replace, or refund — whose choice? Usually the supplier's. Worth knowing when the part is discontinued and a replacement may not exist.
- Who pays freight both ways on a warranty claim?
- What is the turnaround target on a claim? A refurbisher with a bench can often do days; a dealer without one is sending it somewhere.
- Is there a test report? For a refurbished part, ask what was tested and keep the answer with the invoice.
Documentation to keep
If you buy secondary-market parts regularly, the cheapest insurance is a consistent record. For each purchase keep: the quote (which states the condition and warranty), the invoice, photographs of the unit and its rating plate on arrival, and any test report. Store them against the machine, not just in accounts payable.
That record is what makes a warranty claim a five-minute conversation instead of an argument, and it is also what tells you, two years later, which supplier's refurbished units are actually lasting.
Statutory rights in the EU
Between businesses, the EU consumer guarantee regime does not apply; what governs is the contract and the applicable national sales law. In practice that means the supplier's terms are the warranty, with two national-law backstops worth knowing: the goods must correspond to their description, and defects present at delivery are generally the seller's responsibility even where a warranty period is short. "New surplus" that turns out to be a repaired unit is a description problem, not a warranty problem, and it is treated much more seriously.
That distinction is also why the condition grade on an offer matters legally as well as commercially. A supplier who describes a part accurately and warrants it briefly is on firm ground; one who describes it generously and warrants it generously is not.
What this marketplace records
Every offer states its condition and, where the supplier provides it, the warranty months. Quotes carry both. If what arrives does not match what was quoted, that record is the basis of a dispute — and disputes, their outcomes and the reviews that follow are part of what a supplier's storefront shows to the next buyer.