OEM Carrier Control Board LH33WP007 for Model PY4GPAB48115NA

This OEM integrated control board is the factory-specified replacement for the Carrier PY4GPAB48115NA packaged gas/electric unit. The control board serves as the central command module for the entire system — sequencing ignition, managing blower timing, monitoring safety inputs, and coordinating heating and cooling stages. When it fails, symptoms typically include the unit failing to respond to thermostat calls, repeated lockout codes, erratic blower behavior, or a complete loss of heating or cooling function.

• Specs: OEM Part Number: LH33WP007 | Designed for Carrier PY4GPAB48115NA packaged unit | Factory-matched logic and sequencing | 24V control circuit compatible | Replaces failed or damaged integrated function control (IFC) boards
• OEM vs Generic: This is a genuine OEM Carrier control board, manufactured to exact factory specifications. Generic or aftermarket boards may not replicate proprietary sequencing logic, timing delays, or fault code behavior — risking misdiagnosis and repeat failures.
• Install Difficulty: 4/5 — Control board replacement requires disconnecting 120V and 24V wiring harnesses and carefully documenting all connector positions before removal. Tools needed: Phillips and flat-head screwdrivers, needle-nose pliers, multimeter, and camera/phone for wiring documentation. Recommend a qualified HVAC technician for this repair.
• Warranty: 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered specifically for the Carrier PY4GPAB48115NA packaged gas/electric unit. Always verify the OEM part number (LH33WP007) against your unit's data plate and existing board label before ordering. Our HVAC parts specialists are available to confirm fitment — contact us before you order if you have any questions.