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9 Troubleshooting and fault elimination
39
9
Troubleshooting and fault elimination
Nature of the fault
Possible cause
Remedial action
Salt Relax POWER controller
The display of the Salt Relax
remains dark
Device is not supplied with power.
Insert the mains plug.
Device is switched off (On/Off switch does not light up). Switch the device on.
Cable connection between display and main board faulty,
e.g. connector not plugged in.
Check the connection.
The message FLOW appears
on the display
Plug-in/ cable connection is loose.
Check the plug-in connection of the gas flow switch and, if installed,
check that the paddle flow switch is correctly connected.
Gas flow switch crusted over.
Clean the gas flow switch in the upper area of the cell.
Paddle flow switch crusted over.
Clean the paddle flow switch.
Air in the gas flow switch.
Check whether there is air in the pipes.
Chlorine production / cell
Low indicator lights up in the
main view of the display
Water in the pool is very cold.
Check the water temperature: If the water is very cold, the display is
normal and can be ignored. Less chlorine is produced, but very little
disinfection agent is required for cold water.
Low salt content in the pool.
Check the salt concentration in the water and if necessary, add salt (1.5
- 2.5 g NaCl/l).
High amount of limescale on the cell plates.
Clean the cell plates of the chlorine production cell as described in
the chapter Maintenance. At the same time, clean the paddle flow
switch.
Chlorine production cell is spent (very few or no gas
bubbles on the cell blades).
Check whether the chlorine production cell is spent and replace it
with a new one if necessary.
Note:
When "Low" is displayed for the first time, indicating that the cell is
spent, the cell will operate for approx. 3 more weeks before it ceases
to function.
Excess of chlorine in the water Output of the chlorine production cell is set too high.
Reduce the production intensity.
If the redox option is used:
redox setpoint faulty.
Check the redox setpoint and the correlation between redox setpoint
and the free chlorine value
If the redox option is used:
Inspect redox electrode for
-
soiling
-
damage
-
calibration
Redox electrode
-
clean
-
replace
-
calibrate
In the case of manual chlorine dosing:
Overdosage (e.g. through manual shock chlorination).
Allow chlorine value to "sink" to suitable level.
The level of free chlorine in the
pool does not reach 0.8 ppm
Filtration runtime too short.
Increase filtration hours.
Output of the chlorine production cell is set too low.
Increase the intensity of electrolysis.
Salt concentration too low.
Check the salt concentration in the water and if necessary, add salt (1.5
- 2.5 g NaCl/l).
Isocyanuric acid content too high.
Check the level of isocyanuric acid in the water (30-50 ppm) – if it is too
high, dilute the water by backwashing the filter and then adding fresh
water (check/adjust salt content).
Measurement of free chlorine content faulty
Check whether the reagent of your measuring equipment has expired.
Unusually high number of people using the pool or
increase in the water temperature.
Trigger the Boost function. If the water temperature remains high for an
extended period or a large number of people are using the pool,
increase the output of the chlorine production cell.
The pH value of the water is higher than 7.8.
Adjust the pH value of the water to approx. pH 7.2.
The electrolysis system does not
achieve maximum intensity
Salt concentration too low.
Check the salt concentration in the water and if necessary, add salt (1.5
- 2.5 g NaCl/l).
Chlorine production cell contaminated or crusted over.
Clean the cell plates of the chlorine production cell as
described in the chapter Maintenance. At the same time,
clean the paddle flow switch.
Chlorine production cell is spent (very few or no bubbles
on the cell blades).
Check whether the chlorine production cell is spent and replace it
with a new one if necessary.