Amana-Goodman 10123537 Limit Switch

The Amana-Goodman 10123537 Limit Switch is a critical safety component designed for specific residential furnaces and air handlers. Engineered for high-limit protection, this 140F manual reset limit switch serves as a primary thermal cutoff to prevent heat exchanger damage or unsafe operating conditions. As an OEM HVAC replacement part, it ensures exact fitment and calibration standards required by the manufacturer, maintaining the integrity of the furnace’s safety circuit. This switch is typically integrated into the blower housing or heat exchanger assembly to monitor internal plenum temperatures. When the temperature exceeds the 140-degree threshold, the switch breaks the electrical circuit, requiring a manual intervention to reset once the fault condition is addressed. For technicians, using this genuine Goodman furnace limit switch is essential for resolving persistent overheating codes and ensuring system reliability during high-demand cycles.

• OEM Compatibility: Precision-engineered for a direct fit in Amana and Goodman heating systems.
• Manual Reset Mechanism: Provides a safety lockout feature that requires manual inspection before restarting the burner assembly.
• Precise Thermal Calibration: Factory-set to trip at 140°F, ensuring accurate protection against airflow restrictions.
• Simplified Installation: Standard mounting footprint and terminal connections allow for fast field replacement.
• Durability: Built to withstand the thermal cycling typical of high-efficiency gas furnaces.

What causes this 140F limit switch to trip repeatedly?
Repeated tripping is usually indicative of restricted airflow, often caused by a dirty air filter, blocked return ducts, or a failing blower motor.

Can I bypass the manual reset for testing purposes?
No, bypassing safety controls is not recommended. If the switch is open, diagnostic steps must be taken to identify the overheating source before resetting the component.

Is this part compatible with other furnace brands?
While designed for Amana and Goodman equipment, compatibility is strictly based on the specific model and serial number of the unit.

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.