Nordyne Intertherm 626408 Furnace Limit Switch L145-40F Replaces 6264080

Product Description

The Nordyne Intertherm 626408 is an OEM furnace limit switch rated at 145 degrees Fahrenheit, also known by the designation L145-40F. This part is a direct replacement for part numbers 626408 and 6264080, making it compatible with Intertherm, Nordyne, and Miller brand furnaces. HVAC technicians and service professionals rely on limit switches as critical safety components in forced-air heating systems. When a furnace overheats, the limit switch automatically cuts power to the burner or blower circuit to prevent equipment damage, component failure, or fire hazard. Without a properly functioning limit switch, a furnace has no reliable way to protect itself from dangerous temperature levels. This OEM replacement restores that protection to factory specification. The L145-40F designation tells technicians exactly what they need to know: the switch trips at 145 degrees Fahrenheit and has a 40-degree differential, meaning it resets automatically once the temperature drops back to a safe operating range. The automatic reset feature means the furnace can resume normal operation without requiring a manual reset by the technician, which reduces service callbacks and speeds up job completion. This part is built to meet the original equipment manufacturer standards for Nordyne platform equipment, which includes a wide range of residential furnaces sold under the Intertherm, Miller, and Nordyne brand names. Using an OEM limit switch instead of an aftermarket substitute ensures the correct trip point, the correct physical footprint, and reliable long-term performance. HVAC contractors, mobile home heating specialists, and furnace repair technicians who work on Nordyne platform equipment will find this limit switch a straightforward drop-in replacement. Proper installation restores the safety circuit and brings the furnace back into safe, code-compliant operation.

• OEM Nordyne Intertherm Miller furnace limit switch rated at 145 degrees Fahrenheit trip point
• Automatic reset function allows furnace to resume operation once temperature returns to safe range
• Direct replacement for part numbers 626408 and 6264080 on Nordyne platform furnaces

Product Highlights

The Nordyne Intertherm 626408 limit switch is a factory-spec safety component that protects Nordyne, Intertherm, and Miller furnaces from overheating. Its automatic reset and precise 145-degree trip point make it a reliable, code-compliant replacement for field technicians.

Product Information

Standard Information

• Brand: NORDYNE INTERTHERM
• Manufacturer Part Number: 626408

Technical Specifications

• Switch Type: Furnace Limit Switch
• Temperature Rating: 145 degrees Fahrenheit
• Switch Designation: L145-40F
• Reset Type: Automatic Reset
• Compatible Brands: Intertherm, Nordyne, Miller
• Replaces Part Numbers: 626408, 6264080