626499R Nordyne limit switch manual Reset L145
626499R Nordyne limit switch manual Reset L145
Limit switch, 1/2D. L145, manual reset. Size T-O-D36TX16. Replaces 626499.
A manual-reset temperature limit switch designed for reliable over-temperature protection in residential and light-commercial HVAC systems. This compact, PCB-mounted switch trips at its designated cut-out temperature and must be manually reset to resume operation. It’s ideal for furnace blower compartments, heat exchangers, and other high-heat areas where a dependable safety cutoff is required.
Key Features
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Cut-out temperature: 145°F
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Manual reset actuator for positive safety confirmation
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PCB-mount design simplifies installation in compact assemblies
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Low-profile housing (10 oz, 2 × 10 × 12 in packaging)
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UL and CSA recognized for HVAC safety compliance
Cross-Reference Compatibility
| Manufacturer | Part Number | Alternate ID |
|---|---|---|
| Nordyne | 626499R | L145 |
| White Rodgers | 36TX16 | T-O-D36TX16 |
| Dwyer | 150-1C | — |
| Honeywell | L4094A | — |
| Robertshaw | 70-612 | — |
System Compatibility
| Brand | Model Series | Application |
|---|---|---|
| Nordyne | A-Series Furnaces | Residential forced-air |
| Coleman | MH Furnaces | Mobile-home heating units |
| York | LX, Affinity® Series | Light-commercial furnaces |
| Amana | AMV, AMT Series | Packaged rooftop units |
| Carrier | Performance Series | Multi-position furnaces |
Technician Notes
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Mount switch upright with actuator accessible for manual reset
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Ensure tight PCB seating; avoid flexing the board during installation
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Wire per schematic: typically in series with the main limit circuit
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Verify cut-out temperature by bench-testing at 145°F; allow cool-down before reset
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Inspect surrounding airflow passages—restricted airflow can cause nuisance trips
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Replace immediately if actuator sticks or housing shows heat-damage