De Dietrich 95365489 sensor KVT 40 L5000

This part is listed as a sensor component under the De Dietrich brand, with the designation sensor KVT 40 L5000 and the manufacturer codes 95365489 and 336.208.002. Parts of this type belong to the temperature sensing group that closes the control loop in boilers and heating systems. They report temperature values such as flow, return, cylinder or outdoor temperature to the control board, enabling the burner control to modulate output correctly. Without accurate sensing, the boiler cannot maintain stable temperature or may modulate wrongly. When selecting a replacement sensor of this class, the key parameters are the resistance characteristic (commonly 10 kΩ or 12 kΩ at 25 °C), the probe form (immersion, clamp-on or sleeve type), the cable length and the connector type. Typical failure modes include a drifting characteristic that distorts the temperature reading, a broken cable, or poor thermal contact between a clamp-on probe and the pipe. A sensor that reports incorrectly can cause the burner to cycle or modulate erratically, leading to inefficient operation or lockouts. Ensure the replacement matches the original in these selection criteria and that the connector is compatible with the control board.