Amana-Goodman 1370909S Limit Switch

The Amana-Goodman 1370909S Limit Switch is a critical safety component designed for high-static furnace applications, featuring a precise 130-160°F temperature range. This auto-reset limit switch is engineered with a 3.25-inch insertion depth, ensuring the sensing element is positioned accurately within the heat exchanger airflow to prevent thermal overloading. As an OEM Goodman replacement part, the 1370909S ensures exact electrical compatibility and mounting alignment for Amana and Goodman gas furnaces. Technicians should verify the L130-30F specification, indicating the switch opens at 160°F and automatically resets once the plenum temperature drops by 30°F to 130°F. Reliable furnace high limit switch performance is essential for preventing domestic heat exchanger cracks and maintaining HVAC system safety protocols. When diagnosing a furnace limit switch tripping, this component provides the rigorous tolerance levels required for Goodman furnace repair and long-term system reliability.

• OEM Precision: Direct replacement part ensures correct 130-160 degree fahrenheit operational calibration.
• Extended Probe Length: The 3.25" insertion depth allows for accurate core temperature monitoring in large cabinet furnaces.
• Automatic Reset: Eliminates manual intervention after brief over-temperature events once the system cools.
• Rugged Housing: Built to withstand the high-cycle thermal stress common in residential HVAC systems.

What causes this limit switch to trip frequently?
Repeated tripping of the Amana 1370909S usually indicates restricted airflow, often due to a dirty filter, blocked return air, or a failing blower motor.

Can I use a shorter insertion length switch?
No. Using a switch with a shorter probe than the 3.25-inch spec may cause delayed response times, potentially leads to heat exchanger damage or unsafe operating conditions.

How do I test the 1370909S during a service call?
Check for continuity across the terminals when the furnace is cool. If the switch remains open at room temperature, the auto-reset mechanism has failed and the part requires 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.