Carrier LH33WZ512 Ignition Control Board

The Intermittent Pilot Gas Ignition Control Board delivers dependable ignition control for compatible gas furnaces. Built as an OEM replacement for Carrier LH33WZ512, it ensures fast, reliable lighting and reduced burner cycling for consistent comfort.

Designed for gas furnace control boards and ignition modules, this unit protects your system with built-in safety features and clear diagnostics. It integrates seamlessly with flame sensor input, gas valve control, and pilot safety logic, delivering durable performance in HVAC repair projects.

• OEM-grade replacement for Carrier LH33WZ512 and compatible systems
• Reliable intermittent pilot ignition sequence for quick, safe start-ups
• Built-in safety lockout and flame-sensor integration for enhanced pilot safety
• LED diagnostics and fault codes for fast troubleshooting
• Easy installation with standard wiring harness connections
• Rugged construction designed for demanding HVAC environments

Keep your furnace running smoothly with this dependable ignition control board—an ideal choice for HVAC repair technicians seeking an OEM replacement that blends reliability, safety, and long-term efficiency.