H.Koenig Reduced Cooling Capacity / Partial Blockage

Ice maker produces ice very slowly; cycles are much longer than normal and ice cubes are small or hollow.

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Possible Causes

Dirty condenser coil reducing heat dissipation, Weak compressor, Partial refrigerant loss, High ambient temperature or poor ventilation

How to Fix / Troubleshooting

Safety first: Unplug the unit before cleaning or moving it.

  • 1. Improve ventilation: Ensure at least 10–15 cm clearance on all sides and that the unit is not enclosed in a cabinet.
  • 2. Clean condenser: Remove dust and lint from the condenser coil and fan using a brush and vacuum.
  • 3. Check room temperature: Move the ice maker to a cooler room if ambient temperature exceeds the specified range.
  • 4. Descale evaporator: Mineral buildup on the evaporator can insulate it. Run a descaling/cleaning cycle with vinegar or approved descaler and wipe the evaporator surface.
  • 5. Monitor performance: If performance remains poor after cleaning and ventilation improvements, the compressor or refrigerant charge may be compromised and require professional diagnosis.

Warning: Do not bend or scratch the evaporator surface; it is thin and can be punctured.

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Repair Difficulty

Easy 2/5

Required Part

Condenser Coil
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