Description
Keep your heat pump running efficiently in cooler weather with the Pentair 473665 Thermistor Defrost Sensor Probe, a genuine OEM replacement component designed for ThermalFlo Titanium and UltraTemp heat pumps. At 53.5 inches in length, this probe reaches the optimal sensing position within the unit to deliver accurate, real-time temperature data that drives the automatic defrost cycle. When outdoor temperatures drop, frost can accumulate on the heat pump’s evaporator coil and dramatically reduce heating output. This sensor detects the onset of icing conditions and triggers the defrost sequence before performance suffers. Built to Pentair’s original manufacturing standards from high-quality, weather-resistant materials, the 473665 provides stable, accurate readings over an extended operational life, helping your heat pump maintain peak output and reducing mechanical strain on the compressor and refrigerant system.
