What is the test procedure to check an ignitor?

The correct procedure for checking an ignitor involves checking for spark and ensuring that the leads are bent close enough to create an appropriate gap for ignition. This step is crucial because it not only verifies that the ignitor is functioning but also ensures that it can produce a visible spark, which is essential for lighting the oil burner.

When performing this test, technicians are looking for the ignitor to produce a consistent and strong spark, demonstrating that it can ignite the oil mist being generated by the burner. If the leads are too far apart, or if there is any obstruction that prevents the spark from bridging the gap, ignition won't occur, leading to operational failure of the system.

Measuring voltage output or checking for continuity might provide information about the ignitor's electrical specifications, but they do not guarantee that the ignitor is performing its key task of creating a spark. Physical inspection for damage is also important, but without verifying the spark generation during operation, the ignitor's efficacy cannot be fully assessed.