OEM Carrier Ignition Control Board LH33WP007 for Model PY4GPAB60090AA

This is the genuine OEM Carrier ignition control board (part number LH33WP007), the factory-specified replacement for Carrier model PY4GPAB60090AA packaged HVAC systems. The ignition control board — also called an IGC board — orchestrates the entire heating sequence: it energizes the inducer motor, monitors the pressure switch, triggers the hot surface igniter, verifies the flame sensor signal, and opens the gas valve. When this board fails, the system will typically enter a hard lockout, display a fault code, short-cycle before ignition, or produce no heat at all. Replacing it with a genuine OEM board restores factory-programmed logic and timing to prevent nuisance lockouts and premature component wear.

• Specs: 24V | 60 Hz | IGC (Integrated Gas Control) board | Cross-references: 1068-15, 1068-83-119A, 3618M138430 | Factory-matched firmware and timing sequences
• OEM vs Generic: OEM boards carry factory-calibrated ignition timing and fault-code logic. Aftermarket boards often lack exact timing tolerances, which can cause nuisance lockouts, premature igniter burnout, or voided equipment warranties.
• Install difficulty: 3/5 — Shut off power and gas before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, and a phone or camera to photograph all wiring connections before removal. Always verify fault codes with a technician prior to board replacement to rule out upstream failures (flame sensor, pressure switch, igniter).
• Warranty: 1-year OEM factory warranty. Ships same business day from our climate-controlled warehouse.

Compatibility: Designed for Carrier model PY4GPAB60090AA packaged gas/electric systems. Verify your existing board's part number against LH33WP007 before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions. In stock and ready to ship today.