Amana-Goodman B1370115 Limit Switch

The Amana-Goodman B1370115 Limit Switch is a critical genuine OEM replacement part engineered for precise thermal protection in residential furnace applications. This 115-150°F auto-reset limit switch acts as a primary safety control, monitoring the internal plenum temperature to prevent heat exchanger damage. When the temperature exceeds the 150°F threshold, the internal bimetal disc opens the circuit to the gas valve, safely terminating the heating cycle. Once the system cools to the 115°F reset point, the switch automatically restores continuity. Designed for high-duty cycle reliability, the B1370115 furnace limit switch ensures your HVAC equipment operates within factory-specified safety parameters, preventing hazardous overheating conditions caused by dirty filters, blower motor failure, or restricted airflow.

Key Benefits

• OEM Precision: Guaranteed Goodman furnace parts compatibility facilitates a direct drop-in replacement without field modifications.
• Thermal Protection: Maintains a strict 115-150 degree temperature range to safeguard the heat exchanger and surrounding components.
• Automatic Reset: Eliminates the need for manual intervention by cycling the system back to "active" status once safe temperatures are reached.
• System Efficiency: Reduces downtime and prevents unnecessary service calls by ensuring the limit circuit reacts accurately to real-time airflow conditions.

Common Questions

What causes a B1370115 limit switch to trip repeatedly?
Frequent tripping usually indicates restricted airflow. Check for a dirty air filter, blocked return air grilles, or a failing blower motor. If the switch remains open despite normal temperatures, the internal bimetal disc may be fatigued and requires replacement.

Is the B1370115 compatible with any furnace brand?
While it is a genuine Goodman Amana part, compatibility is specific to the model and serial number of your equipment. Always verify the temperature stamping on the side of your existing switch before installation.

Can I use a higher temperature limit switch instead?
No. Using a switch with a higher temperature rating than the original factory specification creates a fire hazard and risks cracking the heat exchanger. Always match the OEM temp rating for safety.

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.