Amana-Goodman 1370912S Limit Switch

The Amana-Goodman 1370912S Limit Switch is a critical safety component designed for high-temperature monitoring within HVAC furnaces and air handlers. This 210-240F Auto Limit Switch functions as a primary thermal protection device, opening the electrical circuit if internal plenum temperatures exceed the 240°F threshold. Engineered for Goodman furnace parts replacement, it features an automatic reset configuration, allowing the system to resume operation once temperatures cool within the 210°F differential range. This HVAC high limit sensor ensures consistent airflow monitoring and prevents heat exchanger damage. Utilizing a bimetal disc thermal switch design, the 1370912S offers precise calibration and long-term reliability in high-cycle environments. When conducting Goodman furnace troubleshooting, verifying the continuity of this limit control is essential for resolving lockout codes related to overheating. This genuine OEM part ensures direct compatibility with specific Amana and Goodman cabinet configurations, maintaining the safety standards required for residential gas heating systems.

Key Benefits for Technicians:

• Precision Thermal Calibration: Precisely set for a 210-240°F operating range to ensure reliable equipment protection.
• Automatic Reset Logic: Eliminates the need for manual intervention after temporary temperature spikes, reducing nuisance service calls.
• OEM Compatibility: Exact drop-in replacement for the Amana-Goodman 1370912S, ensuring correct hole alignment and terminal spacing.
• Durable Bimetal Construction: Designed to withstand repeated thermal cycling without drifting from set-point specifications.

Common Questions & Technical Support:

How do I test a furnace limit switch with a multimeter?
With power disconnected and wires removed, check for continuity across the terminals. At room temperature, the switch should be normally closed (0 ohms). If the circuit is open while the unit is cool, the switch has failed.

What causes a limit switch to trip frequently?
Frequent tripping is usually indicative of restricted airflow. Check for a dirty air filter, blocked return grilles, an oversized gas orifice, or a failing blower motor.

Is this switch compatible with other HVAC brands?
While functionally similar to other 240-degree switches, the 1370912S is specifically engineered for Goodman and Amana equipment. Always verify original part numbers before installation.

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.