What is often used to support a technician's diagnosis of an oil burner issue?

Using pressure gauges and meters is crucial for supporting a technician's diagnosis of an oil burner issue. These instruments provide quantifiable data regarding the system's performance, such as fuel pressure, combustion efficiency, and airflow. By taking precise measurements, a technician can accurately identify problems like low fuel delivery, inadequate pressure, or airflow restrictions that might affect the burner’s operation.

Visual inspections, while important for identifying obvious issues, may not reveal hidden problems that can impact performance. Relying solely on manufacturer’s guidelines can limit a technician, as real-world conditions and system variations often require a more hands-on approach. Additionally, making assumptions based on past experiences can lead to oversights, as each problem may present differently depending on various factors. Thus, the most effective approach is to utilize diagnostic tools to gather concrete data that enhances decision-making.