Jacuzzi Temperature and Hi Limit Sensors for J-300 Hot Tubs

Temperature and Hi Limit Sensors for current model Jacuzzi J-300 Series Spas built from 2002 to 2017

Temp Sensors Include New O-Ring

Our Sensors

• 6600-167 Temp Sensor with box end connector for LCD Systems
• 6600-166 Temp Sensor with curled end connectors for LED Systems
• 6600-168 Hi Limit Sensor with box end connectors for LCD Systems
• 6600-144 Hi Limit Sensor with curled end connectors for LED Systems

LCD or LED: Which Do I Need?

• LCD Systems use a 10 button topside control.
• LED systems use either a 4, 5 or 6 button topside control and have a red temperature display.

Common Sensor Error Codes

• "SN-2" refers to a non-functional temperature sensor.
• "SN-1" refers to a non-functional Hi Limit sensor.
• Three dashed lines ("watchdog") is almost always corrected by replacing the temperature sensor.
• Rapidly changing temperature or wildly inaccurate displays are almost always fixed by replacing the temperature sensor.

Click here for downloadable instructions on how to replace the temperature sensor in your spa