The Carrier LH33WP002 Ignition Control Circuit Board is an original equipment replacement component designed to manage the ignition process in compatible Carrier, Bryant, and Payne gas-fired HVAC systems, including packaged rooftop heating and cooling units. It coordinates the ignition sequence by controlling the igniter and gas valve while monitoring flame signals and safety conditio... https://www.partshnc.com/carrier-lh33wp002-ignition-control-circuit-board