Nordyne 626461R Limit Switch

The Nordyne 626461R Limit Switch is a critical OEM furnace safety switch engineered for over-temperature protection in residential and light commercial HVAC systems. This 160°F manual reset limit switch serves as a direct, updated replacement for the discontinued 626461 model, Ensuring precise thermal regulation within Nordyne, Intertherm, and Miller gas and electric furnaces. When the plenum temperature reaches the 160-degree threshold, the L160F limit switch interrupts the 24V control circuit to the heat source, preventing heat exchanger damage and hazardous operating conditions. Unlike automatic reset switches, this manual reset HVAC switch requires a technician to inspect the system for airflow obstructions or blower failure before restoring operation, providing an essential layer of diagnostic safety for manufactured housing HVAC parts.

• Direct OEM Replacement: Matches exact factory specifications for Nordyne part number 626461R, ensuring proper mounting alignment and terminal orientation.
• Manual Reset Safety: Prevents the furnace from cycling under dangerous conditions, forcing a manual inspection of the high limit circuit.
• Broad Compatibility: Engineered for use across multiple brands under the Nordyne umbrella, including Intertherm and Miller mobile home furnaces.
• High-Temperature Calibration: Factory-set 160F CO limit provides reliable cut-out performance for consistent furnace safety.

What causes a Nordyne 626461R limit switch to trip?
A trip is typically caused by restricted airflow, which may result from a dirty air filter, blocked return air vents, a failing blower motor, or a cracked heat exchanger. The manual reset prevents the unit from restarting until the heat levels subside and the button is depressed.

Can I replace a 626461 with the 626461R?
Yes, the 626461R is the official updated version provided by the manufacturer to replace the older 626461 part number. It maintains the same electrical ratings and 160-degree temperature setting.

How do I test this limit switch during a service call?
A technician should check for continuity across the terminals when the system is cool. If the switch is open and the reset button is engaged, the internal bimetal disc or contacts have likely failed, necessitating a replacement of the furnace high limit switch.

Safety Notice:
?? California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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.