Servicing strategy and preventive maintenance for products sold with one-dimensional warranties

A manufacturer sells its product with a longer warranty period in order to increase the product competitiveness. Offering a product with a longer warranty period increases the warranty cost to the manufacturer. For a repairable product, an appropriate servicing strategy can reduce the warranty cost significantly. Many servicing strategies involving replacement or imperfect repair have been studied in the literature. In this paper, we study a servicing strategy which considers preventive maintenance and imperfect repair to reduce the warranty cost.