Nordyne 626336R Limit Switch

The Nordyne 626336R Limit Switch is a critical OEM replacement part designed to monitor and regulate internal plenum temperatures in Nordyne furnace units. This specific L160-40F high limit switch functions as a primary safety control, featuring a fixed temperature setting that opens the electrical circuit at 160?F (Open on Rise) and automatically resets when the system cools to 120?F (providing a 40?F differential). For service technicians troubleshooting furnace short cycling or blower motor malfunctions, this snap-disc limit control ensures the gas valve closes if airflow is restricted, preventing heat exchanger damage. Its surface mount design and 1/2" diameter bimetal disc offer high-precision thermal response and seamless integration into HVAC furnace safety circuits. Whether you are performing routine maintenance or a mid-season repair, using genuine Nordyne HVAC parts maintains factory specifications and prevents safety hazards associated with overheating.

• Critical Safety Protection: Automatically shuts down burners if temperatures exceed 160?F to prevent equipment failure.
• Exact OEM Specifications: Direct 626336R replacement ensures proper fit and terminal alignment in Nordyne-built air handlers and furnaces.
• Automatic Reset: Features a 40?F differential, automatically closing the circuit at 120?F to resume normal operation once safe.
• Durable Construction: Engineered to withstand high-cycle thermal environments, reducing the risk of premature limit switch failure.

How do I know if my Nordyne 626336R limit switch is bad?

If your furnace blower runs constantly or the burners shut off before the thermostat is satisfied, the limit switch may be tripped or stuck open. Use a multimeter to check for continuity; the switch should show a closed circuit at room temperature.

What causes this limit switch to trip frequently?

Frequent tripping is usually a symptom of restricted airflow. Check for dirty air filters, blocked return air vents, or a failing blower motor, as these conditions cause the heat exchanger to overheat and trigger the 160?F safety limit.

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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.