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eXO
®
| Installation Manual
Section 11. Troubleshooting
When there is an error condition, a message is displayed on the screen and the “INFO” LED flashes. When
an error is linked to conductivity (low conductivity) the “SALTS” LED is ON. When the error situation is
corrected, the error message and LED illumination ends automatically.
Message
Possible Cause
Solution
NO FLOW
CHECK PUMP
(“INFO” indicator lit during the
production timers)
► Filter pump failure..
► Filter and/or the skimmer(s) are dirty.
► By-pass valve(s) closed.
► Check the pump, the filter, the skimmer(s), and the by-pass
valve(s). Clean them if necessary.
► Check the wire connections (flow switch).
CHECK OUTPUT
► Cell power cord disconnected or not
properly connected to the cell or inside the
device.
► Cell plates worn, calcified or out of order.
► Internal electronic problem in the control
box following an external electric incident.
► Switch off the chlorinator (“Power” button) and switch off the
power supply to the control box, then check that all the wires are
properly connected (mains power supply, cell, etc.).
► Replace the cell.
LOW CONDUCTIVITY
(“SALTS” indicator lit)
► For models with a temp sensor this error
can be caused by low conductivity.
► Lack of salt < 4000 ppm due to water loss
or dilution (filter backwash, water renewal,
rain, leaks, etc.).
► Can vary depending on the temperature
and age of the cell. The voltage across the
cell terminals varies in time.
► Cell calcified, worn, or out of order.
► Check water temperature.
► Check the condition of the cell plates.
► Measure the salt concentration in the pool water using a salt
tester or a test strip, then add salt to the pool to keep the level
at 4000 ppm. If you do not know the salt level or how to test it,
contact your retailer.
► Is the salt level is correct?
OVER HEAT
(“INFO” indicator lit)
► The temperature inside the control box is
too high, chlorination is slowed (>85°C) then
stopped (> 90°C) if the temperature does not
fall back down in order to protect the electric
circuits.
► If the box is installed outdoors, protect it from direct sunlight.
► Chlorination will automatically resume once the temperature
has fallen back down.
► Issue at the controller.
LOW TEMPERATURE
(“INFO” indicator light is
lit, the temperature on the
display flashes)
► The water temperature measured by the
chlorinator temperature sensor is less or
equal to 10°C; production stops in order to
protect the cell.
► Chlorination will automatically resume at the Low Mode
chlorination rate between 10 and 15°C.
► Chlorination will automatically resume at the normal
chlorination rate above 15°C.
NONE
(Chlorine production not
visible at the cell plates)
► Chlorination is in a reversing period.
► Chlorination is set at less than 100% and
is paused.
► Wait and observe, chlorination should resume.
Additional messages when a pH Link controller is installed
pH LOW
(“INFO” indicator lit)
► The pH level is less than 5.
► The pH sensor is disconnected, dirty,
uncalibrated or not working.
► Alkalinity is low, the pH minus injection
may create large pH variations.
► Check the pH level in the pool using photometer or a test strip.
► Check the pH sensor wiring on the control box and on the
sensor holder.
► Check the operation of the sensor using a sensor tester (ask
your pool specialist).
► Clean and calibrate the sensor.
► Replace the sensor.
► Check and adjust alkalinity.
pH DOSING STOP
(“INFO” indicator flashing)
► The pH setpoint has not been reached
after 5 cumulative hours of injection.
► The pH sensor is disconnected, dirty,
uncalibrated or not working.
► The pH minus container is empty.
► The peristaltic pump is not primed.
► High alkalinity, acid injection does not help
to lower the pH.
► Check the pH level in the pool using photometer or a test strip.
► Check the pH sensor wiring on the control box and on the
sensor holder.
► Check the operation of the sensor using a sensor tester (ask
your pool specialist).
► Clean and calibrate the sensor.
► Replace the pH container.
► Test the peristaltic pump (ask your pool specialist).
► Replace the pH sensor.
► Lower the alkalinity (ask your pool specialist).
Table 8. Troubleshooting