What might indicate that the oil burner needs maintenance?

Frequent cycling and unusual noises are strong indicators that an oil burner may require maintenance. When an oil burner starts to cycle on and off more frequently than usual, it can suggest issues such as a malfunctioning thermostat, clogged filters, or problems with the fuel supply. Unusual noises, such as banging, hissing, or high-pitched sounds, may signal mechanical problems, improper combustion, or the presence of air in the fuel lines. Addressing these concerns promptly is essential to maintain the efficiency and safety of the burner, as ignoring them could lead to more significant issues or breakdowns.

Normal operating sounds and consistent heat output are generally signs that the burner is functioning as intended, whereas a bright green light on the control panel typically indicates that the system is running without issues. In contrast, any deviation from normal operation—reflected in frequent cycling or strange sounds—warrants a closer look to ensure the burner remains in good working condition.