Carrier Bryant LH33WP002A Ignition System Control Printed Circuit Board

Description:

The Carrier Bryant LH33WP002A Ignition System Control Printed Circuit Board is used in HVAC furnace ignition systems to control burner ignition sequences, flame sensing, and safety shutdown functions. Commonly installed in Carrier and Bryant gas furnaces, rooftop units, and commercial heating equipment requiring automated ignition management. HVAC technicians, maintenance teams, and service contractors use this control board for furnace repairs, system restoration, and replacement of failed ignition modules.

Applications:

The Carrier Bryant LH33WP002A ignition control board is commonly used in residential and commercial gas-fired heating equipment where safe burner ignition and flame monitoring are required. Typical applications include forced-air furnaces, packaged rooftop HVAC units, make-up air systems, and commercial heating equipment operating with electronic ignition systems. The board manages ignition timing, flame proving, blower operation, and fault diagnostics to ensure reliable heating system performance.

Technical Specifications:

• Manufacturer part number (MPN): LH33WP002A
• Manufacturer: Carrier / Bryant
• Product type: Ignition system control printed circuit board
• Supply voltage: 24 VAC
• Frequency: 60 Hz
• Function: Burner ignition and flame monitoring control
• Application: Gas furnace and HVAC heating systems
• Control type: Electronic ignition control module
• Compatible equipment: Carrier and Bryant gas furnaces
• Flame sensing: Integrated flame proving circuitry
• Ignition method: Electronic ignition sequence control
• Safety features: Lockout protection and fault monitoring
• Control outputs: Ignitor, gas valve, blower, and safety circuits
• Mounting type: Control panel or furnace compartment mount
• Construction: Printed circuit board assembly
• Operating environment: Residential and commercial HVAC equipment
• Primary use: Furnace repair and ignition control replacement

Common Replacements:

• Carrier HH84AA021 Ignition Control Board
• Carrier CESO110057 Ignition Control Board
• Bryant LH33WP003 Ignition Control Board