Nordyne 626464 Limit Switch

The Nordyne 626464 is a professional-grade automatic reset limit switch engineered for high-accuracy thermal protection within Nordyne, Intertherm, and Miller residential heating systems. Designed specifically for air handlers and condensing units, this L135-15F furnace limit switch operates on a fixed temperature profile, typically featuring a 135°F trip point to prevent heat exchanger damage and unsafe operating conditions. As a direct replacement for part number 626464R, this component ensures seamless mechanical and electrical restoration of the safety circuit without requiring field modifications.

This HVAC high-limit safety switch utilizes a 3-inch probe insert for precise sensing of the plenum or trunk air temperature. For technicians troubleshooting frequent "open limit" fault codes, this replacement heating limit switch offers the reliability needed for mobile home furnace repair and small commercial applications. It functions as a primary safety mechanism, interrupting the burner or heating elements when internal temperatures exceed safe thresholds and automatically resetting once the system cools to approximately 120°F. Ensure your airflow path, filtration, and blower operation are verified to maintain the integrity of the Nordyne 626464 auto limit switch during high-demand cycles.

• Universal Compatibility: Serves as the OEM direct replacement for 626464R across various Nordyne-branded electric and gas furnaces.
• Precise Thermal Response: Fixed L135-15F rating provides reliable system shutdown at 135°F to protect critical heat exchange components.
• Automated Reset Logic: Features an integrated auto-reset function, eliminating the need for manual intervention after the system has adequately cooled.
• Durable Construction: Engineered with a standard 3" insert depth and 1/2" OD for rapid, accurate temperature sensing in high-velocity airflow environments.
• Easy Installation: Designed for standard mounting patterns found in Nordyne air handlers and Miller mobile home units.

• How do I know if my Nordyne 626464 needs replacement? Typical indicators include a constant "open limit" fault on the control board, the blower motor running continuously while the heat stalls, or the furnace cycling off before reaching the thermostat setpoint.
• Is the 626464 compatible with the 626464R? Yes, the 626464 is the current direct replacement for the legacy 626464R part number, meeting the same technical specifications and physical dimensions.
• Will this switch work in a mobile home furnace? Absolutely; this part is a standard component for many Miller and Intertherm mobile home furnace models that require a 3-inch probe limit switch.

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.