Amana-Goodman 10728330 Limit Switch

The Amana-Goodman 10728330 Limit Switch is a critical safety component designed for precise thermal monitoring within residential HVAC systems. As a primary limit switch, this L175-40F manual reset control is engineered to interrupt the burner circuit if heat exchanger temperatures exceed the 175°F safety threshold, preventing equipment damage and ensuring operational safety. This OEM replacement part is compatible with a wide range of Amana, Goodman, and Janitrol gas furnaces and packaged units. The 10728330 features a normally closed circuit design that opens on temperature rise, providing reliable overheat protection. When diagnosing furnace short cycling or limit circuit lockouts, verifying the integrity of this switch is essential for restoring system performance. Its robust construction ensures consistent thermal cutoff accuracy, making it a staple for service technicians requiring exact Goodman furnace parts for field repairs.

• OEM Compatibility: Precision-engineered for seamless integration into Amana and Goodman air handlers and furnaces.
• Enhanced Safety: Provides a fixed-point thermal limit at 175°F to protect the heat exchanger and surrounding components.
• Field Reliability: Durable metal housing and high-grade bimetal sensors reduce call-backs and early failure.
• Simplified Installation: Standard 1/4" male spade terminals allow for direct plug-and-play replacement in existing wiring harnesses.

What causes a primary limit switch to trip repeatedly?
Repeated tripping usually indicates restricted airflow, often due to a clogged air filter, scaled heat exchanger, or a failing blower motor.

Is the 10728330 a manual or automatic reset switch?
The 10728330 is an L175-40F limit switch, which typically functions as an automatic reset control, though system logic may require a manual power cycle at the thermostat or board.

How do I test the 10728330 for continuity?
Using a multimeter set to Ohms, measure across the terminals while the system is cool; a functional switch should show zero resistance (continuity).

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.