A 440V capacitor like the 12078 is a technical upgrade and can safely replace a 370V unit of the same capacitance

Automatic Reset Logic: Eliminates manual resets by closing the circuit once temperatures drop to 150°F

environmental seal

always verify your specific Lennox sensor lead compatibility via the unit’s parts list before installation

Amana-Goodman 10030912 Defrost Sensor A 440V capacitor like theThe Amana Goodman 10030912 Defrost Sensor is a critical OEM replacement part designed to maintain the thermal integrity of heating and cooling systems. Specifically engineered as an L55 25F bimetal thermostat, this sensor monitors the temperature of the evaporator coil to prevent excessive frost buildup that can lead to inefficient operation or compressor failure. By accurately sensing thermal thresholds, it initiates and terminates the defrost cycle,