S1-331-03503-000 York INVERTER DRIVE KIT 4 TON

OEM Inverter Drive Module for York / Coleman / Luxaire 4‑Ton Variable‑Speed Systems

The S1‑331‑03503‑000 is the OEM 4‑ton inverter drive kit used in York‑family variable‑capacity heat‑pump and air‑conditioning systems. This module is the heart of the outdoor unit’s modulation system, controlling compressor speed, torque, soft‑start behavior, and system protection logic.

The S1‑331‑03503‑000 inverter drive is the primary power‑electronics module that regulates the variable‑speed compressor in York/Coleman/Luxaire 4‑ton inverter systems. It manages:

• Compressor RPM modulation

• Torque control

• Soft‑start and ramp‑down profiles

• Overcurrent and thermal protection

• Communication with the outdoor control board

• Efficiency optimization and load matching

A failing inverter drive may cause:

• No heating or cooling

• Compressor not starting

• Overcurrent or thermal trips

• Outdoor‑unit shutdown under load

• Intermittent inverter‑communication faults

This OEM kit restores full inverter‑driven operation and is required for proper modulation and capacity control.

📐 Key Features

• OEM York/Coleman/Luxaire inverter drive kit

• Designed specifically for 4‑ton inverter systems

• Controls compressor speed, torque, and modulation

• Integrated overcurrent, temperature, and communication protection

• Heavy‑duty power‑electronics assembly (15.72 lb)

• Direct replacement for factory inverter module