Zodiac R0456500 3.5M Thermistor Temperature Probe 20KOHM Hot Tub Temperature Sensor

Zodiac R0456500 3.5M Thermistor Temperature Probe 20KOHM Hot Tub Temperature Sensor

Zodiac R0456500 Thermistor Temperature Sensor Replacement For Pool and Spa Heaters

This regular temperature sensor is designed to use with Zodiac Jandy Legacy LRZE, LRZM pool and spa heater models 125, 175, 250, 325, 400 and also compatible with Zodiac Jandy LXi Low NOx pool and spa heater models 250, 300, 400. Includes sleeve and gasket.

Replaces Part No: R0456500, 6204-209.

Compatibility: Jandy LRZE Heaters, Jandy LRZM Heaters, Jandy LXi Heaters, Jandy JXi Heaters (Model 200, 260, 400).

Includes sleeve and gasket.

Temperature Sensor Replacement for Jandy LXI & Legacy Pool & Spa Heaters
Fits Jandy LXI & Legacy Pool Heaters
Manufactured by Ampfort

Reliable and accurate temperature sensing measurement is critical to efficient operation of the heating and filtration systems associated with pools and spas.
From Ampfort Sensors, Thermometrics provides an array of sensing products for swimming pool and spa applications. All of which include our world-renowned NTC Thermistors, providing high accuracy and stability, setting the performance standard in the industry.

Shut off all power to the spa at the breaker and spa pack
Set your Ohm meter to the 20K setting
Locate the wire ends and remove the plug from the board
Place your meter leads onto the green and red wire
Compare readings to Thermistor Resistance vs. Temperature Chart
Most spa and hot tub high limits, aka thermistors, thermal cut-offs and temperature sensors - will have a resistance reading of around 10000 at 77 degrees Fahrenheit. Colder water produces higher readings up to 50K, while warmer 100° F water will produce lower readings. Refer to your spa manufacturer resistance vs. temperature chart. Or, if you get "0", or a zero reading, the sensor or cable is likely bad. Many hot tubs have more than one temperature sensor; a heater sensor, water temp sensor and air temp sensor.