Pentair UltraTemp Defrost Sensor Probe Thermistor (473665Z) grundfos Amphenol plug for compatible Maytronics

Amphenol plug for compatible Maytronics Dolphin cleaner applications

supporting dependable chemical-feed operation

Helps restore proper water movement through the assembly

or missing lid knobs

Pentair UltraTemp Defrost Sensor Probe Thermistor (473665Z) grundfos Amphenol plug for compatible MaytronicsThis defrost sensor probe thermistor is used in compatible Pentair UltraTemp heat pumps to monitor temperature conditions related to defrost control. Accurate sensor feedback helps the system determine when frost management is needed and supports proper heat pump operation in cooler or humid conditions. A failed or inaccurate thermistor can contribute to error codes, poor heating performance, or improper defrost behavior. Replacing the sensor is a