When troubleshooting an oil burner, what should be the first check?

When troubleshooting an oil burner, checking the fuel supply line for blockages or leaks is a crucial first step. This is because the oil burner relies on a consistent and adequate fuel supply to operate effectively. If there are blockages in the fuel line, it can prevent oil from reaching the burner, leading to issues with ignition and flame stability. Likewise, leaks can not only affect performance but also pose safety hazards due to the risk of fire or explosion.

Starting with the fuel supply line ensures that the basic requirement for combustion is met. Once the supply is confirmed to be clear and secure, other components, such as the ignition system, air supply, and flame stability, can be evaluated. Addressing the fuel supply line first helps streamline the troubleshooting process, allowing for a systematic approach to identify and resolve any issues that might hinder the proper operation of the oil burner.