The Pentair 473665 Thermistor Defrost Sensor Probe is an OEM replacement part designed for use with ThermalFlo Titanium and UltraTemp heat pumps. Measuring 53.5 inches in length, this sensor is essential to the defrost cycle, monitoring temperature levels to ensure the system operates efficiently even in colder conditions. By preventing frost buildup on the heat pump, it helps maintain consistent heating performance and protects against efficiency loss. Built to PentairÕs original specifications, this probe provides dependable operation, secure compatibility, and long-lasting reliability for pool and spa heating systems.

• OEM Defrost Sensor: Specifically engineered for Pentair ThermalFlo Titanium and UltraTemp heat pumps, ensuring precise fit and reliable performance.

• Accurate Temperature Monitoring: Continuously tracks system temperature to regulate the defrost cycle, maintaining safe and efficient operation of the heat pump.

• Prevents Frost Accumulation: Plays a critical role in preventing frost buildup that can reduce efficiency, helping the system maintain consistent output.

• 53.5-Inch Length: Provides ample reach for accurate placement and reliable monitoring, supporting effective temperature regulation.

• Durable OEM Construction: Built to PentairÕs standards using high-quality materials that ensure dependable, long-term use in demanding pool environments.

• Improves System Longevity: Protects heating equipment by reducing strain caused by frost, contributing to longer service life of the heat pump.

• Genuine Pentair Replacement: As an authentic OEM part, it ensures proper integration and continued functionality within compatible heating systems.

• (1)ÊPentair 473665 Defrost Probe

• Pentair UltraTemp Heat Pumps
• Pentair ThermalFlo Heat Pump Titanium

Looking for guidance on the OEM Pentair Thermistor Defrost Sensor Probe 473665? This section answers questions about installation, compatibility, and troubleshooting for Pentair ThermalFlo Titanium and UltraTemp heat pumps, especially for customers shopping in store.

Installing the Pentair 473665 Sensor Probe

The 53.5-inch probe is designed for easy placement within Pentair heat pumps. Correct installation ensures accurate temperature monitoring during the defrost cycle.

How do I install the Pentair 473665 probe in my UltraTemp heat pump?

Can I buy the 473665 sensor probe today at Discount Pool Mart?

Do I need tools to secure the thermistor inside the ThermalFlo unit?

Is the 473665 a direct replacement for older Pentair defrost probes?

Troubleshooting Defrost Issues

If frost builds up on the heat pump, the sensor may not be reading temperatures correctly. Replacing with the 473665 restores efficient defrost performance.

Why does my ThermalFlo heat pump keep icing over?

Can a faulty thermistor prevent the defrost cycle from starting?

How do I test if my Pentair 473665 sensor is still accurate?

Does Discount Pool Mart stock this sensor for emergency repairs?

Finding the Right Part In Store

The 473665 is a genuine Pentair OEM part, ensuring compatibility with UltraTemp and ThermalFlo units. Carrying the SKU makes locating it in store quick and easy.

Where can I buy the Pentair 473665 defrost sensor near me?

Can I confirm store stock before driving to pick up the 473665?

Is the probe packaged with connectors when purchased in store?

Do local stores carry multiple 473665 sensors for service pros?