A warranty is a set of terms, not just a number of days. Two 90-day warranties can transfer very different risk depending on when coverage starts, what counts as a defect, who pays shipping, what remedy is offered, and which installation or testing conditions apply.
Key takeaways
- Get the exact warranty language before purchase.
- Confirm start date, coverage, remedy, freight, exclusions, and claim procedure.
- Align the warranty window with installation and acceptance-test timing.
01
When does coverage start?
Coverage may begin on invoice, shipment, delivery, installation, or acceptance. If a part sits in inventory before a scheduled repair, a shipment-date warranty can shrink substantially before the part is tested. Ask whether documented delays or spare-stock purchases receive different terms.
02
What is the remedy?
The supplier may repair, replace, issue credit, or refund at its discretion. Advance replacement may be available or the failed unit may need evaluation first. Clarify turnaround, equivalent-part substitutions, loaners, labor, travel, calibration, data recovery, and whether consequential downtime is excluded.
03
Exclusions and claim evidence
Common exclusions can include physical damage, liquid, improper installation, incompatible use, unauthorized repair, missing seals, altered labels, consumables, batteries, shipping damage, or failure to return an exchange core. Understand what evidence is required: photos, logs, system details, test results, or return authorization.
04
Receiving and acceptance
Inspect packaging and identifiers on arrival, document damage promptly, verify the quoted revision, and preserve packaging until acceptance. Schedule qualified installation and testing inside the return and warranty windows. Record the serial number and test outcome so any later claim can be tied to the shipped item.
Related terminology
Terms with a published definition link directly to the glossary.