Ferguson Enterprises 10728330 Primary Limit Switch

Product Description

The FERGUSON ENTERPRISES 10728330 is an OEM primary limit switch designed for Goodman and Amana HVAC equipment. A primary limit switch is a thermal safety device that monitors heat exchanger temperature and shuts down the burner if the furnace overheats. It is a critical component in gas furnace protection, preventing heat exchanger damage and unsafe operating conditions. This part is sourced as an official OEM replacement, meaning it meets the original equipment specifications for the systems it serves. Licensed HVAC technicians typically install and replace this component during routine service or after a no-heat diagnostic.

This limit switch is intended for use in residential gas furnaces manufactured under the Goodman and Amana brands. It is suited to installations where the original primary limit switch has failed or tripped repeatedly due to airflow restriction, blower motor issues, or normal end-of-life wear. Proper identification of the limit switch location within the furnace cabinet is required before replacement.

Key Features

• Official OEM replacement part for Goodman and Amana HVAC equipment
• Functions as a thermal safety cutout to protect the heat exchanger from overtemperature conditions
• Direct OEM-style fit eliminates the need for modification during installation
• Designed to restore proper furnace safety control after limit switch failure or nuisance tripping

Compatibility

This is an official OEM primary limit switch for Goodman and Amana HVAC equipment. Verify the part number against the furnace nameplate or service manual before ordering to confirm fitment for your specific unit.

Installation Notes

Primary limit switch replacement is a task for a licensed HVAC technician. Before servicing, shut off power to the furnace at the disconnect switch and turn the gas supply valve to the off position. Inspect the airflow system, including the filter and blower, before replacing the limit switch, as restricted airflow is a common root cause of limit switch failure. Follow all applicable local mechanical codes and the manufacturer service documentation during installation.

Technical Specifications

• Component Type: Primary Limit Switch
• OEM Part: Yes

Standard Information

• Brand: FERGUSON ENTERPRISES
• Manufacturer Part Number: 10728330