Amana-Goodman 1370910S Limit Switch

The Amana-Goodman 1370910S Limit Switch is a critical OEM replacement part engineered for high-limit thermal protection in residential gas furnaces. Featuring a 7-inch insertion length and a 170°F cut-out temperature, this 36T01 size bimetal switch is designed to interrupt the burner circuit if the heat exchanger or blower compartment exceeds safe operating parameters. With a 140°F automatic reset (30°F differential), it ensures the system returns to normal operation once temperatures have stabilized, preventing unnecessary downtime while prioritizing equipment safety. This primary limit switch includes 9-inch wire leads and a standard 1-7/8" x 2-3/4" backplate for a seamless furnace repair installation. As a genuine Goodman furnace part, it maintains factory specifications for timing and sensitivity, ensuring compatibility with GMN, GMP, and GMPN series units. For contractors, using this HVAC safety switch reduces the risk of premature heat exchanger failure and ensures the system operates within its engineered thermal limits.

• Precise Thermal Protection: Opens at a 170°F set point to prevent heat exchanger damage or unsafe conditions.
• Automatic Reset Logic: Resets at 140°F to resume heating cycles once the system has cooled sufficiently.
• Drop-in OEM Fit: 7" probe and standard backplate mounting eliminate field modifications during HVAC maintenance.
• Pre-wired Convenience: Integrated 9" wire leads facilitate quick connections for emergency furnace repair calls.
• Broad Compatibility: Genuine Amana heating part verified for use in various Goodman, Daikin, and Janitrol models.

What causes a furnace limit switch to trip repeatedly?
Repeated tripping is often caused by restricted airflow, such as a dirty HVAC filter, a failing blower motor, or blocked return ducts. Always verify static pressure and airflow after replacement.

Is the 1370910S compatible with other brands?
Yes, as an OEM part for the Daikin/Goodman parent company, it fits Amana, Goodman, Janitrol, and some McQuay or Kenmore models. Check your specific furnace model number against technical data.

Can I use a shorter probe if the 7-inch model is unavailable?
No. The insertion length is calibrated to sense temperatures at a specific point in the heat exchanger. Using the wrong probe length can cause safety hazards or improper cycling.

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.

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