Description
The Carrier LH33WZ512 is a genuine OEM ignition control module designed to ensure reliable and safe furnace operation for a wide range of Carrier, Bryant, and Payne heating systems. This intermittent pilot (IID) control board is engineered for durability, precision, and efficient ignition performance.
Key Features
- OEM Reliability: Built to Carrier’s exact specifications, this module is a drop-in replacement that maintains original system performance and preserves warranty integrity.
- 24V AC Operation: Runs on standard 24 VAC input, making it compatible with typical thermostat and furnace control systems.
- Lockout Protection: Features a microprocessor-based safety lockout (5–6 minute delay after repeated ignition failures) to prevent unsafe ignition attempts.
- High-Voltage Spark Output: Delivers a strong spark (minimum 17.5 kV open circuit) for consistent ignition across natural gas and propane systems.
- Compact & Durable Design: Lightweight yet rugged construction ensures long-term reliability even under high-heat and vibration conditions.
- Wide Model Compatibility: Compatible with a variety of Carrier, Bryant, and Payne furnace models — ideal for retrofits or maintenance of common HVAC systems.






