Industrial 1068-83-129A Furnace Ignition Control Circuit Board

OEM Carrier LH33WP002A Ignition Control Circuit Board (also cross-listed Honeywell 1068-12 and 1068-83-129A) is the central ignition logic module for many Carrier, Bryant, and Payne gas furnaces. It manages the ignition sequence, including spark generation and timing, gas valve control, flame sensing, and safety lockout to ensure reliable lighting and safe operation. This board is designed as a drop-in replacement that uses the existing wiring harness on compatible residential and light commercial units, supporting high-efficiency Carrier/Bryant/Payne systems. It operates on 24-volt control voltage at 60 Hz, a standard specification for typical HVAC equipment. The LH33WP002A is referenced in parts catalogs as the OEM replacement for 1068-12 and 1068-83-129A, consolidating ignition control with safety interlocks in a compact module. By restoring the original ignition sequence and compatibility with the unit’s inducer, flame sensor, and gas valve circuitry, technicians can reestablish proper ignition performance without wiring or harness modifications. This module is a genuine OEM replacement aligned with the Carrier/Bryant/Payne family of furnaces, serving as a reliable solution for ignition reliability in residential and light commercial applications.