Amana-Goodman 10728339 Limit Switch

The Amana-Goodman 10728339 Limit Switch is a critical safety component designed for specific furnace and air handler applications. This OEM replacement limit switch features a 150-190F temperature range, effectively monitoring internal heat exchanger temperatures to prevent thermal overloads. Engineered as an auto-reset furnace limit, it ensures the system safely cycles off if high-limit thresholds are reached and restores operation once temperatures normalize. It is compatible with a wide range of Goodman, Amana, and Janitrol gas furnaces, maintaining the original equipment’s L190-40F specifications. For technicians, this high-limit safety switch offers a direct-fit solution, minimizing downtime during emergency repairs. The 10728339 temperature sensor is built with high-grade bimetal discs for precise thermal response and long-term reliability in high-cycle environments. Always verify the specific HVAC furnace parts compatibility against the unit’s model and serial number to ensure correct trip points and terminal orientation.

Key Benefits:

• Precise Thermal Calibration: Calibrated for a 190°F cutout and 150°F reset point to protect the heat exchanger.
• OEM Compatibility: Exact drop-in replacement for Goodman furnace limit switches, ensuring proper fit and terminal alignment.
• Automatic Reset Logic: Eliminates the need for manual intervention after temporary overheating events.
• Durable Construction: Built to withstand the harsh thermal cycling typical of residential gas heating systems.

Common Questions:

How do I know if the limit switch is failed?
A tripped or faulty limit switch will typically cause the indoor blower to run continuously while preventing the burners from igniting or staying lit.

What causes this switch to trip frequently?
Frequent tripping is often caused by restricted airflow, such as a clogged filter, blocked return air, or a failing blower motor, which drives up heat exchanger temperatures.

Is this switch directional during installation?
While the electrical leads are usually interchangeable, the physical orientation must match the original mounting holes to ensure the sensing element stays in the correct airflow path.

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.