What happens when the fuel oil suction strainer is not cleaned regularly?

• A. The oil becomes less efficient
• B. It can cause blockages and affect fuel flow
• C. The burner automatically shuts down
• D. It increases the cost of oil

Answer: (B)

When the fuel oil suction strainer is not cleaned regularly, it can lead to blockages that significantly affect fuel flow. The strainer's primary function is to filter out impurities and debris from the fuel oil, ensuring that only clean fuel reaches the system. If the strainer becomes clogged with contaminants, it will impede the flow of fuel to the burner or engine. This lack of sufficient fuel flow can result in a range of operational issues, such as poor combustion, inefficient engine performance, and potentially even a shutdown of the system if the flow is critically reduced. Maintaining a clean suction strainer is crucial for ensuring optimal fuel delivery and system reliability, hence why regular cleaning is an essential maintenance practice.