Amana-Goodman 10728340 Limit Switch

The Amana-Goodman 10728340 Limit Switch is a critical OEM replacement engineered for precise thermal regulation within residential furnaces and air handlers. This furnace high limit switch features a secondary safety circuit designed to monitor heat exchanger temperatures, triggering an automatic reset once conditions return to safe operating parameters. Rated for a temperature range of 70-220 degrees F, this Goodman replacement part prevents equipment damage by interrupting the burner circuit if restricted airflow—often caused by a failed blower motor or clogged filter—leads to overheating. Built to meet exact factory specifications, it ensures seamless HVAC compatibility across multiple Amana and Goodman model lines. Field technicians rely on this 10728340 limit control for its consistent calibration and durability in high-cycle environments, providing a reliable solution for restoring system safety and maintaining optimal airflow dynamics without the need for manual intervention after a trip event.

• OEM Precision: Genuine Amana-Goodman 10728340 ensures exact fitment and factory-calibrated trip points.
• Automatic Reset: Eliminates downtime by automatically closing the circuit once temperatures drop below the 70°F threshold.
• Thermal Protection: Prevents heat exchanger fatigue by maintaining a strict 220°F maximum temperature ceiling.
• Universal Compatibility: Engineered for Broad application across Goodman, Amana, and Janitrol gas furnaces.

How do I troubleshoot a 10728340 limit switch that keeps tripping?
Repeated tripping usually indicates an airflow restriction. Check for a dirty air filter, blocked return vents, or a failing blower motor before replacing the switch.

Is the 10728340 switch compatible with my specific furnace model?
This part fits various Amana and Goodman units. Cross-reference your model number with the OEM parts list or contact a technician to verify the 70-220 degree F rating matches your system requirements.

What causes a furnace limit switch to fail?
Excessive heat cycles from poor airflow can cause the internal bimetal disc to lose calibration or the contacts to pit over time, necessitating an OEM replacement.

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.