F50
Miele Ice Production Temperature Control Fault

Ice maker shows F50, ice cubes irregularly shaped or wet, temperature regulation fault

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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

Faulty ice mold temperature sensor, Control board misregulating freeze time, Poor door seal causing warm air infiltration, Ice compartment fan intermittent

How to Fix / Troubleshooting

Safety: Disconnect power before accessing sensors or fans.

  • Check door gasket: Inspect the ice compartment and main door gaskets for tears or gaps. Replace if not sealing properly.
  • Verify fan operation: Ensure the ice compartment fan runs consistently when cooling is demanded. Replace if intermittent.
  • Test mold sensor: Locate the sensor attached to or near the ice mold. Measure resistance at different temperatures and compare to spec. Replace if out of range.
  • Observe cycles: After any repair, monitor several ice cycles. If cubes remain wet or malformed, the control board may be mis-timing the freeze/harvest cycle and require replacement.

Note: Avoid frequent door openings during testing, as this affects temperature stability.

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Repair Difficulty

Hard 4/5

Required Part

Ice Mold Temperature Sensor
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