OEM Carrier Ignition Control Board LH33WP007 for Model PY4GPAB48130AA

This is the genuine OEM Carrier ignition control board (part number LH33WP007), factory-specified for the Carrier PY4GPAB48130AA packaged unit. The ignition control board is the brain of your system's heating sequence — it manages the inducer motor, hot surface igniter, gas valve, and flame sensor in precise coordination. When this board fails, symptoms typically include a complete no-heat condition, repeated ignition lockout fault codes, erratic cycling, or failure to prove flame even when the igniter and sensor test good individually. Replacing the board with a genuine OEM unit restores factory-programmed timing and safety thresholds.

• Specs: 24V | 60 Hz | OEM Part Number LH33WP007 | Ignition control / IFC board | Replaces LH33WP007A variant
• OEM vs Generic: OEM boards are programmed with Carrier's exact ignition timing, lockout retry logic, and fault code sequences. Aftermarket boards often use generalized firmware that can trigger nuisance lockouts or void equipment warranties — OEM is strongly recommended for this category.
• Install difficulty: 3/5 — Requires disconnecting multiple low-voltage and line-voltage wiring harnesses. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone/camera to photograph all wiring before removal. Shut off power and gas before servicing. If fault codes persist after replacement, inspect the flame sensor and pressure switch before condemning the board.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships same business day from our warehouse.

Compatibility: Factory-matched replacement for the Carrier PY4GPAB48130AA packaged unit. Verify the part number on your existing board's label before ordering — look for LH33WP007 or LH33WP007A printed directly on the board. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — contact us anytime.