Nordyne 626407R Limit Switch

The Nordyne 626407R Limit Switch is a critical OEM safety component engineered for precision temperature monitoring in Nordyne, Intertherm, and Miller gas and electric furnaces. As a 2-pole, automatic reset L145-40 limit switch, it is calibrated to open the circuit when the internal plenum temperature reaches its 145?F high-limit set point and automatically closes when the temperature drops to the 105?F reset threshold. This high-limit control is essential for preventing heat exchanger overheating and ensuring the blower assembly operates within safe thermal parameters. Featuring a 3/4-inch diameter sensing element and robust screw terminal connectors, this genuine Nordyne replacement part (also cross-referenced as 626407) provides the exact calibration required to maintain system certification and operational safety.

• OEM Precision Calibration: Specifically designed with a 145-degree trip point and 105-degree reset to meet exact Nordyne furnace specifications.
• Automated Safety Reset: Eliminates manual intervention by automatically restoring the circuit once safe operating temperatures are achieved.
• Multi-Brand Compatibility: Direct replacement for Nordyne, Intertherm, Miller, and select Frigidaire or Tappan HVAC units.
• Industrial-Grade Build: Features a durable 2-pole design with copper contact materials for reliable electrical continuity in high-cycle environments.

Is the 626407R a manual or automatic reset switch?
This is an automatic reset limit switch. It will cycle back to the closed position on its own once the plenum temperature cools to the 105?F range.

Why is my furnace blower running but there is no heat?
A tripped or faulty high limit switch often causes this symptom. If the switch detects a temperature exceeding 145?F, it breaks the circuit to the gas valve or heating elements as a safety precaution while keeping the fan running to dissipate excess heat.

Does this part replace the older 626407 model?
Yes, the 626407R is the current manufacturer-approved replacement for the 626407 and 6264070 part numbers.

This item is not eligible for free shipping.

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.