626495R Nordyne 260–300°F Automatic Reset Limit Switch Product Overview 626495R is a genuine OEM automatic reset limit switch engineered for Nordyne gas furnaces and air handlers. Its 5-inch probe accurately senses temperatures between 260 °F and 300 °F, shutting down burners to prevent overheating and automatically resetting once the system cools. Designed for reliability and compliance with OEM specifications, it ensures safe continuous operation in residential and light commercial HVAC applications. Technical Specifications Specification Detail Temperature Range 260 °F to 300 °F Probe Insertion 5 in (127 mm) Reset Type Automatic reset Terminal Connection Two 1/4 in spade terminals Probe Diameter 0.25 in (approximate) Housing Material High-temperature thermoset plastic Cross-Reference Part Numbers OEM Part Number Cross-Reference / Legacy Numbers 626495R — Compatibility Nordyne gas furnaces and air handlers requiring a 260–300 °F auto limit switch Intertherm, Miller, and other Nortek Global HVAC private-label units with equivalent temperature limits Most residential and light commercial systems using a 5 in auto-reset limit probe Always verify against the appliance data plate or service manual before ordering. Technician Notes De-energize electrical and gas supplies, then allow the system to cool before servicing. Tag and photograph the existing probe location and wiring for accurate reinstallation. Use the same 5 in mounting tube and ensure the probe tip sits in the original sensing position. Connect the spade terminals securely; avoid excessive torque or bending of the probe. After installation, cycle the furnace through a heat call and monitor for normal operation and no nuisance trips. Additional Resources OEM wiring diagram & installation manual (PDF) Printable cross-reference cheat sheet for limit switches
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