Nordyne 626513R Limit Switch

The Nordyne 626513R Limit Switch is a critical thermal safety control designed for precise furnace temperature regulation in Intertherm, Miller, and Nordyne heating systems. Engineered as an L200-50F automatic reset limit, this component monitors internal heat levels within the furnace cabinet to protect the heat exchanger from thermal excursions. The 626513R furnace switch is calibrated to open on rise at 200°F, immediately breaking the circuit to prevent overheating, and features a 50°F differential, allowing for an automatic reset at 150°F once safe operating temperatures are restored.

For field technicians, this OEM Nordyne replacement part (replaces 626513 and 21359) ensures HVAC system compatibility and maintains the original equipment's safety specifications. The limit control serves as a primary overheating protection mechanism, essential for preventing component damage and ensuring uniform heating cycles. Whether you are performing a routine furnace limit switch replacement or troubleshooting a system that is short-cycling, this 150-200F auto limit switch provides the reliability required for high-demand residential and mobile home furnace applications.

Key Benefits:

• Precision Thermal Calibration: Features a factory-set 200°F opening point and 150°F reset for consistent cycle management.
• Broad OEM Compatibility: Serves as a direct replacement for Nordyne 626513, 6265130, and 21359 part numbers across Miller and Intertherm lines.
• Automatic Reset Functionality: Eliminates the need for manual intervention by restoring power once heat levels drop below the 50°F differential.
• Enhanced System Safety: Acts as a dedicated thermal safety control to prevent furnace overheating and potential fire hazards.
• Technical Durability: Constructed to withstand the high-cycle demands of modern HVAC heating systems.

Common Questions:

How do I know if my Nordyne limit switch is bad?
If your furnace blower runs constantly while the burners remain off, or if the system shuts down before reaching the thermostat setpoint, the 626513R limit switch may have failed open or is tripping due to restricted airflow.

What causes a 200-degree limit switch to trip frequently?
Frequent tripping usually indicates an overheating issue often caused by a dirty air filter, blocked return air ducts, a failing blower motor, or a cracked heat exchanger.

Is the Nordyne 626513R compatible with mobile home furnaces?
Yes, this specific L200-50F switch is a standard safety component in many Nordyne-manufactured mobile home furnace models, including those branded as Miller or Intertherm.

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.