In these days of economic uncertainty, technicians face difficult challenges. When focusing on initial price considerations, it is common for customers to retain old equipment beyond its optimum life and efficiency.
It is also common for purchasing personnel, whether at the contracting company or supply house, to shorten their capacity in an effort to reduce upfront costs. It is often difficult to service aged or undersized equipment. It is also difficult for the equipment to achieve the necessary performance when subject to conditions that are beyond design criteria.