Liebherr ice maker error E9; ice production stops after high ambient temperature or long door openings

Safety first: Avoid leaving doors open for extended periods; this can damage the compressor.

• Check actual temperature: Place a thermometer in the freezer and verify it reaches at least -15°C to -18°C. If not, address general cooling issues first.
• Inspect door gasket: Run your hand around the gasket near the ice maker area to feel for cold air leaks. Replace damaged gaskets.
• Check for obstructions: Ensure food packages are not blocking air vents leading to the ice maker compartment.
• Allow recovery: After heavy use or warm loading, allow the unit several hours to stabilize. The ice maker will resume once temperature is adequate.
• If E9 persists in normal conditions: The ice maker temperature sensor or control logic may be faulty and require professional diagnosis.