626418R Nordyne Limit Switch L150-20F Clearance 3 left in inventory On Sale Product Overview The 626418R Nordyne Limit Switch L150-20F is a direct-fit safety control designed for residential gas-fired furnaces. It monitors heat exchanger temperatures and interrupts the burner circuit if the internal plenum temperature exceeds safe limits, preventing overheating and potential damage. Key highlights: Direct replacement for Nordyne limit switches with L150-20F settings Precision temperature cut-out at 150 °F with a 20 °F differential Durable black housing engineered for long service life Compact footprint with quick-connect terminals for fast installation Technical Specifications Cut-out temperature: 150 °F (± 5 °F) Differential temperature: 20 °F (± 3 °F) Contact configuration: SPST normally closed Electrical rating: 25 A @ 240 VAC resistive load Terminal type: 1/4″ quick-connect spade Housing material: High-temperature bakelite Dimensions: 1.5″ × 1.5″ × 0.75″ (L × W × H) Weight: 0.16 lb Cross-Reference Part Numbers Nordyne 626418R Neuco L150-20F Coleman HVAC L150-20F OEM replacement for several Bosch-era furnaces Compatibility This limit switch mates with a wide range of single-stage gas furnaces and air handlers. Common compatible brands and series include: Nordyne/Coleman Residential Furnaces York/Westinghouse Single-Stage Units Goodman/Amana Legacy Series Bryant/Payne Standard Furnaces American Standard Basic Heat Kits Technician Notes Always power down and verify zero voltage before removing the old limit switch. Confirm the old switch’s cut-out and differential match L150-20F specs before replacement. Mount switch on the plenum in the exact orientation of the original to ensure accurate temperature sensing. After installation, cycle the furnace to verify proper burner interruption and reset. Keep a spare L150-20F on the truck for quick swaps during service calls.
