OEM Carrier Ignition Control Board LH33WP007 for Model PY3GPAA60115AA

The Carrier LH33WP007 is the factory OEM ignition control board (IFC) for the Carrier PY3GPAA60115AA packaged HVAC unit. This board serves as the central brain of the heating system — orchestrating the ignition sequence, monitoring flame signal, managing inducer and blower timing, and coordinating safety lockout logic. When this board fails, you'll commonly see symptoms such as a no-heat condition with no ignition attempt, repeated lockout fault codes, erratic burner cycling, or a system that simply won't respond to thermostat demand.

• Specs: 24V control voltage | 60 Hz | OEM part number LH33WP007 | Factory-matched logic and timing for Carrier packaged systems
• OEM vs Generic: This is the genuine Carrier OEM board — not an aftermarket substitute. OEM boards carry exact factory firmware, connector layouts, and fault-code logic. Generic boards may lack model-specific timing parameters, increasing the risk of nuisance lockouts or premature component wear.
• Install Difficulty: 3/5 — Requires disconnecting 120V/240V power at the disconnect before any work. Document all low-voltage wiring connections with photos before removal. Tools needed: insulated screwdrivers, ¼" nut driver, needle-nose pliers, and a multimeter to verify 24V control circuit integrity after installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered as the direct OEM replacement for the Carrier PY3GPAA60115AA packaged unit. Always confirm your existing board's part number matches LH33WP007 before ordering. Not sure? Our HVAC parts specialists verify fitment before every order — contact us with your model and serial number.