OEM Carrier Ignition Control Board LH33WP007 for Model PY3GPAA60090AA

This is the genuine OEM Carrier ignition control board (part number LH33WP007), the factory-specified replacement for the Carrier PY3GPAA60090AA packaged gas unit. The ignition control board serves as the brain of your system's heating sequence — it orchestrates the inducer motor startup, hot surface igniter energization, gas valve timing, and continuous flame signal monitoring. When this board fails, common symptoms include a hard lockout with no heat, repeated ignition attempts that never establish flame, erratic LED fault codes, or a system that simply won't respond to a call for heat at all.

• Specs: 24V AC | 60 Hz | OEM part number LH33WP007 | Factory board weight approx. 0.84 lbs | Direct drop-in replacement with no wiring modifications required
• OEM vs Generic: This OEM board is manufactured to Carrier's exact design-life testing standards, ensuring proper ignition timing, flame-sense thresholds, and fault-code accuracy. Aftermarket boards frequently deviate on trial-for-ignition timing and flame rectification sensitivity, leading to nuisance lockouts or unsafe operation.
• Install Difficulty: 3/5 — Requires shutting off gas and 120V power before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, and a phone or camera to photograph all wiring harness connections before removal. Transfer one connector at a time to avoid wiring errors. Always clear fault codes after installation and verify full heat cycle operation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as a direct OEM replacement for the Carrier PY3GPAA60090AA packaged gas/electric unit. Always verify your existing board's part number against LH33WP007 before ordering. If you're unsure of fitment, our HVAC parts specialists can confirm compatibility before your purchase — no guesswork required.