OEM Carrier Control Board LH33WP007 for Model PY3GNA048130AA

This OEM integrated function control board is the factory-specified replacement for the Carrier PY3GNA048130AA packaged unit. The control board acts as the central command module — orchestrating ignition sequencing, blower timing, error fault detection, and communication between all major system components. When it fails, common symptoms include system lockout with no heating or cooling, erratic blower behavior, fault codes on the thermostat, or a unit that powers on but refuses to run any stage of operation.

• Specs: OEM Part Number LH33WP007 | Factory-matched replacement | 24V control circuit compatible | Designed for Carrier PY3GNA048130AA packaged unit
• OEM vs Generic: This is a genuine OEM Carrier control board manufactured to exact factory tolerances. Generic or aftermarket boards may not support the full fault-code library or proprietary communication protocols built into the PY3GNA048130AA, risking misdiagnosis and repeat failures.
• Install Difficulty: 3/5 — Requires powering down the unit at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, smartphone or camera to photograph all wire harness connections prior to removal. Label all connectors. Allow 30–60 minutes for a careful swap.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed as a direct OEM replacement for the Carrier PY3GNA048130AA packaged unit. Always verify the part number on your existing board's label before ordering to confirm fitment. Have questions about compatibility? Our HVAC parts specialists verify fitment before you order — contact us today.