Hayward Aqua Plus Check System light will not clear

MikeSch

New member
Aug 16, 2023
1
Savannah Georgia
I have had this system for about 10 years and it’s been very dependable. My check system light is on with no errors that I can tell. Is it possible that high water temperature could cause the system to stop functioning. Currently pool water is at 88deg.
 
I have had this system for about 10 years and it’s been very dependable. My check system light is on with no errors that I can tell. Is it possible that high water temperature could cause the system to stop functioning. Currently pool water is at 88deg.
Not caused by water temperature.
I have had this system for about 10 years and it’s been very dependable. My check system light is on with no errors that I can tell. Is it possible that high water temperature could cause the system to stop functioning. Currently pool water is at 88deg.
From the manual:
Check System Indicator
The "CHECK SYSTEM" LED will alert you when the Aqua Plus detects any of the following conditions that are
abnormal and require attention for optimal operation of your pool. Press "<" or ">" to view all of the existing
"Check System" conditions.
• Inspect Cell -- For optimum operation, you will need to inspect the Aqua Plus chlorinator cell approximately
every 3 months and clean the cell if necessary. The Aqua Plus will automatically remind you when it is time and
display "Inspect Cell, + to reset" as part of the rotating Default Menu. Clean the cell (see instructions, page 30)
and then press the "+" button during the "Inspect Cell" display to reset the timer.
• Low Salt/Minerals or Very Low Salt/Minerals -- When the salt is too low the Aqua Plus will generate less
chlorine and the life of the cell is degraded. Check the cell and clean if necessary before adding salt.
• High Salt/Amps/Minerals -- The Aqua Plus will stop generating chlorine under certain high salt conditions in
order to protect the internal electronics from damage. The only way to lower the salt level is to partially drain the
pool and add fresh water.
• Water Sensor -- If the water sensor is either an open or short circuit.
• Air sensor -- If the freeze protection feature is enabled (Configuration Menu/ Filter Config.) and the air sensor
is either an open or short circuit.
• Solar Sensor -- If the solar sensor is either an open or short circuit.
• Chlorinator Cell Sensor -- If the chlorinator function is enabled (Configuration Menu/Chlorinator) and the cell
sensor is either an open or short circuit.
 
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