White-Rodgers 50A51-242 (York 031-01290-000) - F18TU

Control Board Specifications – White-Rodgers 50A51-242 (York 031-01290-000) Condition: Used – Cleaned and Fully Functional Model Number: 50A51-242 York Part Number: 031-01290-000 (S1-031-01290-000) Manufacturer: White-Rodgers Parent Company: Emerson Electric Co. Equipment Brand: Designed as OEM for York furnaces Part Type: Integrated Furnace Control Board – Two-Stage Key Specifications: Control Type: Two-Stage Integrated Furnace Control Function: Manages ignition sequence, inducer motor, gas valve staging (HI/LO), blower timing, and safety circuits Ignition System: Hot Surface Ignition (HSI) compatible Operating Voltage: 120V AC primary Control Voltage: 24V AC thermostat interface Flame Monitoring: Flame rectification sensing Diagnostics: On-board LED fault code indicator Application Type: Residential gas furnace control module Identification & Replacement: • Original York Part: S1-031-01290-000 (Discontinued) • Official Replacement: S1-33103009000 (York two-stage control board) • Universal Alternative: White-Rodgers 21M51U-843 universal replacement kit • Direct OEM board for York-branded furnace systems Common Applications: • York residential gas furnaces • Two-stage forced-air heating systems • Systems requiring OEM White-Rodgers ignition control Condition: Used - Like new For Sale By: Owner Curbside pick up: Yes Cash accepted: Yes