Goodman 3S500031-1 Pulse Motor Electronic Expansion Valve (EEV)

Description

The Goodman 3S500031-1 is an OEM Pulse Motor Electronic Expansion Valve (EEV) engineered as a direct replacement for compatible Goodman and Amana HVAC systems. Utilizing a precision stepper (pulse) motor mechanism, this EEV provides highly accurate, variable refrigerant flow control — a critical function for maintaining peak system efficiency, proper superheat management, and reliable capacity modulation across a wide range of operating conditions.

Unlike traditional thermostatic expansion valves (TXVs), the electronic expansion valve responds dynamically to system demand signals from the control board, enabling tighter refrigerant metering, reduced energy consumption, and improved comfort performance in both cooling and heating modes.

Key Features

• OEM Goodman replacement part — ensures fit, form, and function compatibility
• Pulse motor (stepper motor) driven for precise, electronically controlled refrigerant metering
• Enables dynamic superheat control and system capacity modulation
• Supports improved energy efficiency compared to fixed or thermostatic expansion devices
• Designed for use in compatible Goodman and Amana residential and light commercial HVAC equipment
• Helps maintain optimal system performance and extend equipment life

Application

This EEV is intended for use as a factory-authorized replacement component in Goodman HVAC systems that utilize electronic expansion valve technology. Always verify compatibility with your specific model and serial number before installation. Professional installation by a licensed HVAC technician is recommended.

Why Choose an OEM EEV?

Using a genuine Goodman OEM expansion valve ensures the valve’s flow characteristics, pulse motor specifications, and electrical connections match the original equipment exactly — protecting system warranties and ensuring reliable, long-term operation.