Nordyne 626419R Limit Switch

The Nordyne 626419R Limit Switch is a critical OEM replacement part designed for high-limit thermal protection in residential gas furnaces. Engineered as a normally closed safety device, this switch is calibrated to open on temperature rise at 195?F and automatically reset at 175?F. This precise 20-degree differential ensures the heat exchanger operates within safe thermal parameters, preventing potential cycling issues or component damage. With an insert length of 3-1/8 inches, it is optimized for direct mounting in the airstream, providing rapid response to over-temp conditions.

This L195-20 auto-reset limit is compatible with a wide range of Nordyne, Miller, and Intertherm G6 furnace series, including G6RA, G6RK, G6RC, and G6RD models. It replaces older part numbers like 626419 and cross-references with 36T01B3 and A1505. For service technicians, this genuine Nordyne 626419R offers the required electrical ratings of 120V/240V to maintain the safety circuit's integrity without the need for manual intervention after a temporary temperature spike.

• Precise Thermal Calibration: Features a fixed 195?F trip point to protect the heat exchanger from overheating.
• Automatic Reset Functionality: Closes the circuit once the plenum cools to 175?F, restoring furnace operation without a service call for manual resetting.
• OEM Compatibility: Specifically designed for Nordyne G6 series furnaces and Miller/Intertherm mobile home units.
• Standard 3-1/8" Insert: Fits standard mounting brackets for efficient field replacement in tight heat exchanger compartments.

• Does this replace the 626419 and 6264190? Yes, the Nordyne 626419R is the current direct OEM replacement for these older part revisions.
• What happens if my furnace keeps tripping this switch? Frequent opening typically indicates restricted airflow from a dirty filter, blocked returns, or a failing blower motor, rather than a faulty limit switch.
• Is this compatible with mobile home furnaces? Yes, this part is widely used in Miller and Intertherm branded furnaces manufactured by Nordyne.

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.