E16
Arktic Leak Detection or Overflow Switch Activation

Internal leak or overflow detected; E16 displayed, unit may shut down

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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

Leaking water inlet valve, Cracked reservoir or hose, Blocked drain causing overflow, Activated base pan float switch

How to Fix / Troubleshooting

Safety First: Unplug the unit and shut off water immediately to prevent damage.

Steps:

  • Inspect base pan: Remove the front kick plate or rear panel and look for water in the base. Many Arktic models have a float switch that triggers E16 when water is present.
  • Dry the area: Use towels or a wet/dry vacuum to remove all standing water. Reset or dry the float switch.
  • Find the source: With water still off, inspect the inlet valve, reservoir, hoses, and internal fittings for cracks or mineral tracks. Turn water on briefly and watch for drips.
  • Repair leaks: Replace any cracked reservoir, hose, or leaking water inlet valve. Ensure all clamps are tight.
  • Test: After repairs, run the unit and monitor for new leaks before reinstalling panels.
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Repair Difficulty

Medium 3/5

Required Part

Base Pan Float Switch
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