Northair Improper Drainage / Siphoning

Ice maker fills with water but then immediately drains it without making ice.

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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

Drain hose routed too low causing siphon, Stuck-open drain valve, Drain pump stuck on due to control fault, Incorrect installation of gravity drain

How to Fix / Troubleshooting

Safety: Unplug the unit and close any external drain valves before adjusting hoses.

Steps:

  • Check drain hose routing: Ensure the drain hose runs downward with no loops below the drain outlet that could create a siphon. Follow Northair installation guidelines.
  • Inspect drain valve: Access the drain valve or pump and verify it is not stuck open with debris. Clean or replace as needed.
  • Control issue: If the drain pump runs continuously even when it should be off, the control board relay may be stuck and the board may need replacement.

Tip: For gravity drains, maintain proper height and slope to prevent backflow and siphoning.

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Repair Difficulty

Medium 3/5

Required Part

Drain Hose
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