Amana-Goodman 1370914S Limit Switch

The Amana-Goodman 1370914S Limit Switch is a critical safety component designed for high-temperature monitoring within HVAC furnace systems. This 190-220F auto reset limit switch functions as a primary high-limit control, ensuring the heat exchanger does not exceed safe operating temperatures. When the plenum temperature reaches the 220°F threshold, the internal bimetal disc triggers the normally closed (NC) circuit to open, immediately interrupting the gas valve circuit to prevent component failure or fire hazards. As an OEM replacement part, the 1370914S ensures precise calibration and rapid thermal response times consistent with original equipment manufacturer standards. This furnace high limit switch is compatible with a wide range of Amana, Goodman, and Janitrol gas furnaces. Proper installation involves verifying the temperature range and mounting configuration to maintain the structural integrity of the furnace’s safety sequence.

Key Benefits:

• Automatic Reset Functionality: Automatically closes the circuit once temperatures drop back into the safe operating range (190°F), reducing unnecessary service calls for manual resets.
• Precision Thermal Calibration: Engineered for a specific 190-220°F range to provide accurate overheat protection for the heat exchanger.
• Universal OEM Compatibility: Designed for seamless integration with Goodman furnace parts and Amana heating systems, ensuring exact fitment and electrical specifications.
• Durable Construction: Built to withstand the high-cycle demands of residential and commercial HVAC blower motor and burner sequences.

Common Questions:

How do I know if the Amana-Goodman 1370914S limit switch is faulty?
If your furnace blower runs continuously while the burners fail to ignite, or if the system cycles off before reaching the thermostat setpoint, the high limit switch may be stuck open or tripped due to restricted airflow.

What causes a furnace limit switch to trip repeatedly?
Frequent tripping is usually caused by restricted airflow, such as a clogged HVAC air filter, a failing blower motor, or soot buildup on the heat exchanger. Always verify static pressure before replacing the switch.

Can I use a limit switch with a different temperature rating?
No. For safety and compliance, you must use a switch that matches the OEM temperature specifications (190-220F) to ensure the system operates within its design parameters.

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.