Description
Zodiac 3.5 mm female jack connector R0749600
The Zodiac 3.5 mm female jack connector R0749600 is the original low voltage socket used on older Zodiac salt chlorinators to connect the flow detector cable to the control unit. It provides a precise, secure plug in connection for the 3.5 mm jack used on compatible flow switches, ensuring reliable flow detection and safe system operation.
Main features of the Zodiac 3.5 mm female jack connector
- Original Zodiac 3.5 mm female jack socket for flow detector connection.
- Designed for low voltage signal circuits on salt chlorinator control units.
- Provides a stable mating point for the male 3.5 mm jack on the flow detector cable.
- Factory grade component with the correct geometry for the control board or housing.
Function in the chlorinator system
On pre 2017 Zodiac systems that use a flow detector with a 3.5 mm jack plug, the R0749600 connector is the interface between the sensor cable and the control electronics. A sound connector is essential for the chlorinator to read the flow signal correctly and to trigger low flow protection when circulation stops or is insufficient.
- Receives the flow detector signal via the 3.5 mm jack plug.
- Helps ensure that chlorine production stops automatically on low or no flow.
- Supports a quick plug in connection without loose or exposed conductors.
Compatibility and typical applications
The Zodiac 3.5 mm female jack connector R0749600 is used on selected Zodiac salt chlorinators that originally relied on a jack style flow detector connection. It is typically mounted on the control board or on a small support within the control unit.
- Compatible with pre 2017 Zodiac systems that use a 3.5 mm jack flow detector, such as those paired with R0737500 sensors.
- Suitable as a replacement when the original jack socket is worn, loose or damaged.
- Used during refurbishment of control units where stable flow detector contact is required.
When to replace the Zodiac R0749600 connector
Over time, repeated plugging and unplugging of the flow detector cable, combined with heat and humidity in the technical room, can wear the contacts or housing of the jack socket.
- Loose connection or intermittent flow detection when the cable is moved.
- Visible corrosion, discoloration or deformation around the 3.5 mm socket.
- Difficulty inserting or removing the male jack plug.
- Loss of spring tension on the internal contacts leading to unreliable signals.
Installation guidelines
Replacing the Zodiac 3.5 mm female jack connector R0749600 involves working on the low voltage circuit of the control unit. The operation should always be done with the power disconnected and, ideally, by a person familiar with soldered or board mounted components.
- Disconnect the chlorinator from the mains supply and verify that it is fully de energised.
- Open the control unit housing to access the printed circuit board or mounting plate that holds the jack socket.
- Note the position and orientation of the existing R0749600 connector before removal.
- If it is board mounted, desolder the old socket carefully without damaging the surrounding tracks.
- Fit the new 3.5 mm female jack connector in the same position and solder or fix it according to the original layout.
- Check that the male jack plug seats fully and that the connector is mechanically stable.
After reassembly, reconnect the flow detector cable, restore power and verify that the chlorinator correctly detects flow and low flow conditions via the renewed connector.
Care and good practice
Good handling of the flow detector cable and the jack interface helps extend the life of the new connector and maintain reliable flow safety.
- Always insert and remove the jack plug straight, without excessive force or twisting.
- Keep the technical room as dry and well ventilated as possible to limit corrosion.
- Avoid pulling on the cable; support the plug body when disconnecting the flow detector.
- Check the connector periodically for signs of play, corrosion or poor contact.
With a correctly installed Zodiac 3.5 mm female jack connector R0749600 and a sound flow detector cable, compatible salt chlorinators maintain a stable and reliable flow detection interface as originally designed.
