OEM Carrier Ignition Control Board LH33WP007 for Model PY3GNA024040NA

This is the factory OEM ignition control board (part number LH33WP007), the direct replacement for Carrier model PY3GNA024040NA packaged HVAC units. The ignition control board is the central command module for the heating sequence — it manages the inducer motor, hot surface igniter, gas valve, and flame sensor circuit in precise timed stages. When this board fails, the unit may enter a hard lockout, attempt ignition with no result, fail to prove flame, or display fault codes indicating a failed ignition sequence. Replacing it with the correct OEM board restores factory-programmed timing and safety logic.

• Specs: 24V AC control voltage | 60 Hz | OEM Part # LH33WP007 | Compatible board reference: 1068-15 | Weight: 0.84 lbs
• OEM vs Generic: This OEM board carries exact factory-programmed ignition timing, lockout thresholds, and safety delays. Generic aftermarket boards may vary in delay timing, increasing the risk of nuisance lockouts or unsafe ignition sequences — always prefer OEM on ignition-critical components.
• Install Difficulty: 3/5 — Turn off power and gas supply before starting. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Take note of all connector positions and DIP switch settings on the old board before installing the new one.
• Warranty: 1-year OEM manufacturer warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for Carrier model PY3GNA024040NA packaged HVAC units. Verify your existing board's part number against LH33WP007 before ordering. If you're unsure about fitment, our HVAC parts specialists can confirm compatibility before you buy — same-day shipping available on in-stock orders.