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With its thru-bolt mounting and mechanically reversible counter-clockwise shaft end (CWSE) rotation
Frequent tripping of the 1320363 limit switch usually indicates airflow issues
Key Benefits for Technicians: Universal Compatibility: Interchanges directly with standard 40A 2-pole units like the 45GG20AG
If the orifice is corroded or the opening is enlarged from improper cleaning
the switch is calibrated to open at 150°F to prevent heat exchanger damage and close at 120°F once safe operating temperatures are restored
Carrier LH680534 Flame Sensor With its thru-bolt mounting andThe Carrier LH680534 Flame Sensor is a critical safety component designed for precise flame rectification in residential and commercial heating units. As a direct OEM replacement flame sensor, this part is engineered to interface seamlessly with the integrated furnace control (IFC) to monitor burner ionization. This specific model serves as the factory authorized successor to several legacy part numbers, providing a standardized solution for