Description Jacuzzi (6500-551) Temperature Sensor – 3 pin Fits all Jacuzzi J200, Jacuzzi J300 & Jacuzzi J400 series – When having problems with your Jacuzzi water temperature – Essentially Spurious readings – Check or change out the temperature sensor. On older Jacuzzi Models you may have a green cable temp sensor – These will need replacing with the red cabled Temp sensor.
