121-666

The Ignition Module (120/24VAC) is a high-performance electronic control board designed to manage the startup and operation of gas-fired heating systems. This essential HVAC component coordinates the ignition sequence, regulates the gas valve, and provides continuous flame monitoring to ensure safe and efficient burner performance. Ideal for furnace repair and maintenance, this modulating circuit board resolves common issues such as failed ignition, frequent cycling, or burner instability. Engineered for reliability, it integrates seamlessly with both line-voltage power supplies and low-voltage thermostat controls, restoring consistent heating functionality to your residential or commercial unit.
Type: Ignition Control Board
Size: Compact
Application: Used in gas furnaces, forced-air HVAC systems, and gas-fired heating appliances to regulate ignition and monitor burner safety.
Specifications: Primary Voltage: 120VAC; Control Voltage: 24VAC; Function: Modulating ignition control with integrated flame sensing.