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7. SERVICING
During the first 10-15 days, your system will require more attention:
- Check that the pH remains at the ideal level (7.2 to 7.4).
- If the pH is exceptionally unstable and uses a lot of acid, check the alkalinity (see table Chemical water balance).
If the balance is highly unstable, contact your pool installer/builder.
REMEMBER that the system needs a certain amount of time to adapt to your pool and will require additional chemicals
during the first 3-5 days.
The pool must be regularly maintained and the skimmer baskets emptied whenever necessary.
Also check that your filter is not clogged.
ADD WATER: It is preferable to add water via the skimmers so that it passes through the cell before entering the pool.
Remember to check the salt percentage after adding water.
DOSING PUMPS: Regularly check the acid level to ensure that the pump does not run dry. The dosing pump must be
checked and serviced at regular intervals. The Santoprene tube of the peristaltic pump has a lifetime of 2 years. We
recommend that you change it once a year.
Servicing the pH probe
The probe must be clean and free from oil, chemical deposits and contamination to function properly. As it is in continuous
contact with the water in the pool, the probe may need to be cleaned weekly or monthly, depending on the number of
bathers and other specific characteristics of your pool. A slow response, more frequent pH calibration and inconsistent
readings indicate that the probe needs to be cleaned.
To clean the probe, turn off the power to the AquaRite
Unplug the probe connector from the unit, unscrew the probe and carefully remove it from the chamber. Clean the probe
bulb with a soft toothbrush and regular toothpaste.
A household washing-up liquid detergent may also be used to remove any oil.
Rinse with fresh water, replace the Teflon tape on the threads, and reinstall the probe.
If the probe continues to give inconsistent readings or requires excessive calibration after it has been cleaned, it should be
replaced. The lifetime of the probes is 1 year. We recommend that you calibrate them every month during the season the
pool is in use.
Servicing and cleaning the cell
Turn off the main power supply to the AquaRite
HC LS before removing the cell. Once it has been removed, examine the in-
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side of the cell for any traces of scale (whitish brittle or flaky deposits) and debris stuck to the plates. If no deposits are visible,
put the cell back in place. If deposits are visible, try to remove them with a garden hose. If this method is unsuccessful, use a
plastic or wooden tool to remove deposits stuck to plates (do not use a metal tool as this will damage their coating). A build-up
of deposits on the cell indicates an exceptionally high concentration of calcium in the pool water. If you cannot find a solution to
this situation, you will have to clean the cell at regular intervals. The best way to avoid this problem is to maintain the chemical
composition of the water at the recommended concentrations.
Acid washing: This should only be done in severe cases where flushing will not remove most of the deposits. To acid wash,
turn off the main power supply to the AquaRite
HC LS. Remove the cell from the piping. In a clean plastic container, make up
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a solution of water and acetic or phosphoric acid (such as that used to remove scale from a coffee machine). ALWAYS ADD
ACID TO WATER – NEVER ADD WATER TO ACID. Be sure to wear rubber gloves and protective goggles for this operation.
The level of the solution in the container should just reach the top of the cell, so that the wire harness compartment IS NOT
under water. It may be helpful to coil up the wire before submerging the cell. Allow the cell to soak for a few minutes, then rinse
it with a garden hose. If the deposits are still visible, soak and rinse again. Put the cell back and examine it from time to time.
Probe storage
The end of the probe must always be in contact with water or a solution of KCl. If it is removed from the measuring chamber,
it should be stored in the plastic cap provided (filled with water). If the storage cap has been mislaid, the probe should be
stored separately in a small glass or plastic container with its end immersed in water.
The probe must always be in a frost-free environment.
AquaRite
HC LS
®
Only use spare parts supplied by Hayward brands
HC LS.
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8. TROUBLESHOOTING GUIDE
No display
Check the connection cable between the display and the control box.
Check that the 4A fuse is not defective (located inside the control box).
Check the power supply: 210-230 V 50 Hz.
If the problem persists, contact your pool installer/builder.
Excessive chlorine
Check and/or adjust the chlorine production setting.
If your pool has an automatic ORP control system, check the ORP setting.
Check the ORP probe and calibrate, if necessary.
The hydrolysis has not reached the required production rate
Check the concentration of salt in the water (depending on the model).
Check the condition of the cell (it may be dirty or covered in scale).
Clean the cell according to instructions.
Check the flow switch and clean if necessary.
Check that the cell is not worn (contact your pool installer/builder).
Cell scaled up in under a month
Very hard water with high pH and total alkalinity (balance and adjust the pH and total alkalinity of the water).
Check that the system automatically changes polarity (see display).
Impossible to attain a free chlorine level of 1 ppm
Increase the filtration time.
Increase the chlorine production rate.
Check the concentration of salt in the water (see table Chemical water balance).
Check the level of isocyanuric acid in the pool (see table Chemical water balance).
Check that the reactive agents in your test kit are not out of date.
Adjust the chlorine production according to the temperature and the number of pool users.
Adjust the pH to ensure that it is always below 7.8.
Alarm AL3: pH dosing pump stopped
The maximum time allowed to attain the pH set point has been reached. The pH acid dosing pump is stopped to avoid
overdosing and acidifying the water.
Please carry out the following checks:
Check that the can of liquid pH is not empty.
Check whether the pH read on the machine corresponds to the pH in the pool (use a pH analysis kit). Otherwise, please
calibrate the pH probe or replace it, if necessary.
Check that the pH pump is running normally.
Check the correction time setting.
To make this message disappear and reset the dosing, press on the pH reading circle for 3 seconds.
The screen indicates LOW
Check the water balance and salinity.
Check that the cell is free of scale and clean it if necessary.
See "The hydrolysis has not reached the required production rate".
Water temperature too low.
White flakes in the pool
This occurs when the water is unbalanced and very hard.
Balance the water, check the cell and clean it, if necessary.
The screen indicates FLOW
Check the flow switch and the gas detector.
Check that the filter pump is working.
Check that the pipes are not obstructed (valve closed, basket or strainer full, etc.).
Check that the 4A fuse is not defective.
Changing the battery
Unplug the cables that are screwed to the "extension" circuit board.
Unscrew the "extension" circuit board.
Unscrew the black cover of the "main" circuit board.
Change the battery (CR2032 type).
Screw the black cover, the "extension" circuit board, and the cables back in place.
AquaRite
HC LS
®
Only use spare parts supplied by Hayward brands
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