The seller shall be liable under the warranty if, at the time of delivery, the subject matter of the sale lacks the qualities that the seller guaranteed to the purchaser to exist therein, or if the subject matter of the sale has a defect that diminishes its value or its utility for the intended purpose, as stated in the contract or as apparent from the nature of the thing or the purpose for which it was prepared. The seller shall be liable for this defect even if they are unaware of its existence.
Interpretation and application must be checked against the official text and current version.