HSCI 1171-30 Furnace Control Board | 4121M109131 - F65YU

HSCI 1171-30 Furnace Control Board | 4121M109131 | OEM Direct Spark Ignition | Tested Condition: Used – Clean, Tested & Fully Working Availability: Ready for Pickup / Fast Response Key Specifications Brand: HSCI Part Number: 1171-30 Secondary Part Number: 4121M109131 Board Number: 1171-83-1021A (SST-A) Type: Integrated Furnace Control Board Direct Spark Ignition (DSI) Application: Residential gas furnaces with direct spark ignition, inducer motor control, blower control, flame sensing, and safety monitoring. Major Components High-Voltage Spark Ignition Transformer Large integrated spark ignition transformer provides high-voltage ignition for direct spark ignition (DSI) gas burners. Microcontrollers Main Control IC (U1) Secondary Control IC (U2) Controls: Spark ignition sequence Gas valve operation Flame sensing Blower timing Inducer motor control Safety lockout functions Relays Panasonic ALQ312 (2) Coil: 12VDC Contacts: 10A @ 250VAC Panasonic Power Relays (2) High-current switching for furnace outputs. TE Connectivity Relay (1) Auxiliary control relay for furnace operation. Power Components Five high-power ceramic resistors Three additional ceramic resistors 47K100 M2 polypropylene film capacitor Multiple electrolytic capacitors Line Voltage Connections Terminal Function COM Common HEAT Heating Blower COOL Cooling Blower L1 Line Voltage Input IND Draft Inducer Motor HIGH IND High-Speed Inducer Sensor & Control Connections Terminal Function FS Flame Sensor 24VAC Control Voltage Harness Connectors P – 9-Pin (3×3) Main Harness Connector P5 – 6-Pin Harness Connector Electrical Ratings Power Supply: 24VAC Frequency: 60Hz Current: 0.25A Certification: ANSI Z21.20 Automatic Ignition System Compatibility Direct replacement for: 1171-30 4121M109131 1171-83-1021A Commonly used in residential gas furnaces utilizing: Direct Spark Ignition (DSI) Flame Rectification Draft Inducer Motors Multi-Speed Blower Motors Standard 24VAC Thermostat Controls ⚠️ Please verify your furnace model number, part number, connector layout, and board revision before purchasing. Why Buy This Board? ✔️ Genuine OEM HSCI furnace control board ✔️ Fully tested and ready for installation ✔️ Direct Spark Ignition (DSI) control ✔️ Integrated blower and inducer motor control ✔️ Flame sensing and safety monitoring ✔️ Cost-effective replacement for failed OEM boards Pickup: Toronto / GTA