Nordyne 626614 140-180F Manual Reset Limit Switch

Description

Nordyne 626614 Manual Reset Limit Switch Overview

The Nordyne 626614 is an OEM manual reset (M/R) limit switch designed to protect furnaces and heating equipment from dangerous overheating conditions. With a temperature operating range of 140°F to 180°F, this limit switch monitors heat exchanger and plenum temperatures, cutting power to the burner circuit when temperatures exceed the safe threshold. Because it is a manual reset type, the switch must be physically reset after a trip event — providing an added layer of safety by requiring a technician to inspect the system before returning it to operation.

Key Features

• Temperature range: 140°F to 180°F
• Manual reset (M/R) operation for enhanced safety
• OEM Nordyne replacement part — direct-fit for compatible Nordyne, Frigidaire, Gibson, Tappan, and affiliated brand furnaces
• Interrupts burner circuit upon high-temperature detection to prevent heat exchanger damage and fire hazard
• Durable construction for long-term reliability in residential and light commercial heating applications

Application

This limit switch is a genuine Nordyne OEM replacement component, engineered for precise fit and function in Nordyne-family furnaces. It is ideal for HVAC technicians performing preventive maintenance, warranty repairs, or emergency service calls where the original limit switch has tripped and cannot be reset, or has failed entirely.

Why Manual Reset?

Unlike automatic reset limit switches, a manual reset limit switch requires a qualified technician to physically press the reset button after a high-limit trip. This design ensures that the root cause of the overheating event — such as a dirty filter, blocked airflow, or failed blower motor — is identified and corrected before the system is returned to service, reducing the risk of repeated overheating and equipment damage.

Specifications

• Part Number: 626614
• Brand: Nordyne
• Type: Manual Reset Limit Switch
• Temperature Range: 140°F – 180°F
• Application: Nordyne-family furnaces and heating equipment