Amana-Goodman 10728319 Limit Switch

The Amana-Goodman 10728319 Limit Switch is a critical OEM replacement part engineered for precise thermal regulation within Goodman, Amana, and Janitrol furnaces or packaged units. This 130-170F auto limit switch (specifically a 3-inch main limit with an L170-40 rating) serves as a primary safety component, monitoring internal heat exchange temperatures to prevent hazardous overheating conditions. Designed for automatic operation, the switch opens the electrical circuit when temperatures hit the 170°F threshold and resets once the system cools to 130°F, ensuring continuous protection of the heat exchanger and blower motor assembly.

For technicians troubleshooting furnace short cycling or units that trip on high limit, verified Amana-Goodman 10728319 compatibility is essential. This switch features a standard flange mount for rapid field installation and is a direct substitute for legacy Goodman furnace parts. Utilizing OEM HVAC components maintains the original UL safety certification of the equipment and prevents the erratic performance often associated with universal aftermarket alternatives.

• Precise Thermal Calibration: Features a fixed 130-170 degree Fahrenheit range for accurate high-limit protection.
• OEM Engineering: Guaranteed spec-to-spec compatibility with Amana, Goodman, and Janitrol residential gas furnaces and RTUs.
• Automatic Reset Function: Eliminates manual intervention by cycling the 10728319 switch automatically after the unit reaches safe operating temperatures.
• Industrial-Grade Contacts: Built to handle the repetitive electrical loads of HVAC control circuits without premature failure.

• What does the L170-40 rating signify? This indicates a 170°F opening temperature (high limit) with a 40°F differential, meaning the switch closes at 130°F.
• Will this fix a furnace that cycles on and off repeatedly? If the inducer fan and airflow are verified, a failing limit switch is a primary suspect. Check for continuity across the terminals when cool.
• Is this switch compatible with Janitrol systems? Yes, the 10728319 is the standard 3-inch main limit switch for many models across the Goodman-Amana-Janitrol family.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.

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