Defrost sensor De Dietrich 711560600

The defrost sensor is a safety and efficiency component used in heat pumps and some boiler systems to detect ice buildup on the outdoor coil. When frost is detected, the sensor signals the system to initiate a defrost cycle, preventing damage and maintaining performance. This sensor is essential for reliable operation in cold climates. Replacing a defective defrost sensor can prevent unnecessary defrost cycles or system shutdowns, ensuring your heating system runs smoothly.