Amana-Goodman 1370901S Limit Switch

The Amana-Goodman 1370901S Limit Switch is a critical OEM replacement part engineered for high-limit temperature protection in residential furnaces and air handlers. This 150-180F AUTO Limit Switch functions as a primary safety control, designed to interrupt the heating circuit should the heat exchanger temperature exceed the safe operating threshold of 180°F. Once the internal temperature cools to the 150°F reset point, the automatic reset furnace switch re-engages the circuit, streamlining system recovery without manual intervention. This L180-30F thermal limit switch features a 3-inch insertion depth and a two-wire terminal configuration, ensuring a direct fit for Goodman, Amana, and Janitrol PGB series units. For technicians performing HVAC furnace repair, utilizing this genuine Goodman furnace limit switch prevents equipment damage and ensures the ignition control sequence adheres to manufacturer safety parameters. Maintaining correct airflow and high-limit sensitivity is essential for the long-term integrity of the heat exchanger and overall system efficiency.

• Precise Thermal Calibration: Precisely opens at 180°F and closes at 150°F to maintain safe furnace operating temperatures.
• OEM Compatibility: Authentic replacement for Goodman and Amana part numbers 1370901S and B1370901S.
• Automatic Reset Functionality: Eliminates the need for manual resets after nuisance trips or temporary overheating events.
• Heavy-Duty Construction: Built to withstand the high-cycle demands of modern high-efficiency gas furnaces.
• Simplified Installation: Standard 1/4" male spade terminals and narrow flange mounting for rapid field replacement.

• What causes a limit switch like the 1370901S to trip? Frequent tripping is often caused by restricted airflow, which may result from a dirty air filter, blocked return vents, or a failing blower motor.
• Is the 1370901S compatible with Janitrol units? Yes, this switch is a direct OEM part for many legacy Janitrol PGB series package units and furnaces.
• How do I test if the limit switch is faulty? A technician can verify the switch using a multimeter to check for continuity across the terminals when the system is cool; no continuity typically indicates a failed open switch.

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.