Arctic Spas Reduced Salt Cell Efficiency

Salt system (Spa Boy/Onzen) shows low output and cannot maintain sanitizer level, but no specific code is shown.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Low salt concentration in water, Scaled or fouled salt cell plates, Aging salt cell nearing end of life, Incorrect output setting in control menu

How to Fix / Troubleshooting

Safety first: Wear gloves and eye protection when handling salt cells and chemicals.

  • Test salt level: Use a salt test strip or meter to verify salt concentration is within Arctic Spas recommended range.
  • Adjust output: Increase the salt system output setting via the topside or Spa Boy control menu if it is set too low.
  • Clean cell: Remove the salt cell and soak in a mild acid solution (per manufacturer instructions) to remove scale, then rinse thoroughly.
  • Replace cell: If output remains low after cleaning and proper salt level, replace the Arctic Spas salt cell.
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Repair Difficulty

Medium 3/5

Required Part

Arctic Spas salt cell
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