F20
V-ZUG Temperature Alarm Condition (Non-Hardware Fault)

Refrigerator shows F20 or over-temperature alarm after power outage or long door opening

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Possible Causes

Extended power interruption,Door left open for prolonged period,Large load of warm food introduced,Ambient temperature too high

How to Fix / Troubleshooting

Safety first: Ensure the appliance is properly powered and doors are closed.

Steps:

  • 1. Acknowledge alarm: Press the alarm or OK button on the control panel to silence the alarm.
  • 2. Check door closure: Confirm that all doors are fully closed and sealing properly.
  • 3. Reduce load: Remove any large, warm items recently placed inside and allow them to cool externally before reloading.
  • 4. Allow recovery time: Give the refrigerator several hours to return to set temperatures. Avoid frequent door openings during this period.
  • 5. Monitor temperatures: Use a thermometer to verify that temperatures return to normal. If they do not, investigate cooling system faults.

Warning: Discard perishable food that has been above safe temperatures for extended periods.

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Repair Difficulty

Very Easy 1/5
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