Service 69
Cat. No. 01016370
Aqua-Sensor Probe Resin Test
The Probe Resin Test uses fully regenerated, but previously used, Cullex® resin to simulate a balanced environment.
Run this test only on a circuit board that has passed the Circuit Board Test with simulator device.
Preparation
You will need a container that can hold enough regenerated Cullex resin to completely immerse the probe’s electrodes
without making contact with the container’s sidewall. A section of PVC pipe, either 2” or 3”, makes a suitable chamber for
testing either residential or commercial probes.
1. Cut a piece of pipe about 18 inches long and close the bottom end with a cap or a flat piece of PVC (which can
also serve as a base)
2. Close the other end with a cap that has been drilled and tapped for a 1” PVC pipe plug, or use a reducing
adapter and plug.
3. Fill the chamber with used, regenerated Cullex resin and soft water; the water level should be at least one inch
above the resin (when not in use, plug the end to prevent spillage of resin and water).
Probe Test
1. Remove the probe from the resin tank. Make sure pressure is relieved on tank before removing probe.
2. Visual inspection
• Look for discoloration (brown film or blue spots) on electrode fins.
• If discolored, try cleaning the probe (Sofner-Gard chemical or white vinegar). The fins can be lightly
scrubbed with a soft toothbrush.
Resin and Regeneration
If the circuit board and the probe pass all tests, the condition of the resin or the regeneration process may actually be to
blame.
1. While the probe is out of the tank, take a sample of resin and examine it for breakage (fines) and fouling.
2. Remove the power to the control.
3. Return the probe to the tank and reconnect it to the circuit board.
4. Power up the control and verify that the program matches the settings recorded at the beginning of the proce-
dure. Also, make sure that the settings are correct for the application. It is recommended that the brine rinse
time be left at the default setting of 60 minutes (increase for higher salt dosages or low inlet pressure condi-
tions) to assure adequate rinse time. The Automatic Rinse Time feature will shorten the actual rinse time as it
detects the passage of the salt from the tank. Setting the time at too short a value could prevent complete rinse-
out and cause daily regeneration.
5. Backwash the unit for 2 – 3 minutes after installing the probe to eliminate any air pockets in the unit.
6. Check the unit for regeneration function (salt dosage, brine draw, rinse and refill).
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