OEM Carrier Ignition Control Board LH33WP007 for Model PY4GPAA48090AA

This OEM ignition control board (IGC) is the factory-specified replacement for the Carrier PY4GPAA48090AA packaged gas/electric unit. The IGC board is the central brain of your system's heating sequence — it manages the inducer motor, hot surface igniter, gas valve, and flame sensor in a precise timed cycle. When this board fails, you'll typically experience symptoms such as a complete no-heat condition, repeated ignition lockouts, erratic cycling, or error codes flashing on the board's diagnostic LED. Replacing it with the correct OEM part ensures factory-matched timing and full compatibility with all onboard safeties.

• Specs: OEM Part Number LH33WP007 | 24V, 60 Hz control circuit | IGC (Integrated Gas Control) board | Also cross-references: 1068-15, 1068-83-119A, 3618M138430 | Weight: 0.84 lbs
• OEM vs Generic: This is the genuine Carrier Factory Authorized Part. OEM boards carry exact firmware, relay ratings, and terminal layouts matched to your unit. Aftermarket substitutes may have timing drift, mismatched relay ampacity, or incompatible diagnostic LED behavior that can void equipment warranties.
• Install Difficulty: 3/5 — Shut off power at the disconnect and gas supply before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Transfer wiring connector by connector. Restore power and run a full heat cycle to confirm all stages operate correctly.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered as a direct OEM replacement for the Carrier PY4GPAA48090AA packaged gas/electric unit. Cross-references include board numbers 1068-15 and 1068-83-119A. Always verify the part number on your existing board's label before ordering. Need help confirming fitment? Our HVAC parts specialists are standing by — order with confidence and get your system back online fast.