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.

Key Benefits

• Genuine OEM Defrost Probe: Precision-engineered for Pentair ThermalFlo Titanium and UltraTemp heat pumps, guaranteeing exact fit and correct signal output.
• Real-Time Temperature Intelligence: Provides continuous thermal data to the control system, enabling the defrost cycle to activate at precisely the right moment.
• Frost Prevention Technology: Detects icing conditions early and initiates defrost before frost buildup can compromise heating capacity or energy efficiency.
• 53.5 Inch Reach: The generous probe length ensures proper positioning within the heat pump for consistent, reliable temperature sampling.
• Factory-Specification Build Quality: Constructed to Pentair's exacting standards with durable, weather-resistant materials for years of accurate, trouble-free monitoring.
• Extended Equipment Life: By preventing excessive frost accumulation, this sensor reduces compressor workload and refrigerant system stress, contributing to longer heat pump service life.
• Authentic Pentair Component: A factory-original part that integrates seamlessly with compatible heat pump control systems for uninterrupted, reliable operation.

What's Included

• Pentair 473665 Defrost Probe

Compatibility

• Pentair UltraTemp Heat Pumps
• Pentair ThermalFlo Heat Pump Titanium

Specifications

• Brand: Pentair
• Part Number: 473665

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