Fridge freezer shows an alarm, red warning light, flashing triangle or beeps

Issue

  • Alarm displayed on the fridge or freezer control panel
  • Red warning light flashing
  • Flashing triangle symbol on the display
  • Appliance beeping or emitting an alarm sound
  • Fridge or freezer not cooling sufficiently
  • Temperature inside the appliance too high, inadequate cooling

Applies to

  • Fridges
  • Fridge freezers

Resolution

High-Temperature Alarm

A high-temperature alarm occurs when the temperature inside the freezer rises. This can happen after a power outage, frequent door opening, or if the door is not properly closed.

Symptoms:

  • Flashing alarm indicator or triangle symbol
  • Red warning light on the display
  • Audible alarm (beeping sound)

How to switch off the alarm:

  1. Press any button to stop the sound
  2. The display will briefly show the highest temperature reached
  3. The display then returns to the set temperature

The alarm indicator continues flashing until the temperature returns to normal.
If no button is pressed, the sound stops automatically after around 1 hour.

Door Open Alarm

If the fridge or freezer door is left open:

  • The alarm sounds after:
    • Approx. 5 minutes (digital control models)
    • Approx. 80 seconds (manual control models)

How to stop the alarm:

  • Close the door to stop the alarm immediately
  • Or press any button / alarm reset switch to mute the sound

The alarm sound will switch off automatically after around 1 hour if no action is taken.

Temperature Adjustment

Electronic Control Models

For appliances with electronic controls:

  • Use the control panel to adjust the temperature settings
  • Increase or decrease the temperature using the dedicated buttons or touch controls
  • The selected temperature will be shown on the display

For recommended settings, refer to our guide on optimal temperature settings for fridges and freezers to ensure proper cooling performance.

Manual Control Models

  • Turn the temperature regulator clockwise → colder temperature
  • Turn the temperature regulator counterclockwise → warmer temperature
  • The highest number on a rotary dial will be the coldest temperature in the fridge, 0 will turn off the fridge and 6-7 will be the coldest.

For best performance and food preservation, refer to our guide on optimal temperature settings for fridges and freezers to ensure your appliance is set correctly.

Temperature issues troubleshooting

Possible Cause

Solution

The temperature is not set correctly

Set a higher/lower temperature.

The door is not closed correctly.

Refer to the "Closing the door" section in your user manual

The food products' temperature is too high.

Let the warm food product's temperature decrease to room temperature before storage.

Many food products are stored at the same time.

Store fewer food products at the same time

The thickness of the frost is greater than 4-5 mm.

Defrost the appliance

The door has been opened too often.

Open the door only if necessary.

The Frostmatic / FastFreeze function is switched on

Refer to the "Frostmatic function" section in your user manual

The Coolmatic / FastCool function is switched on

Refer to the "Coolmatic function" section in your user manual

There is no cold air circulation in the appliance.

Make sure that there is cold air circulation in the appliance. Rearrange the goods. Refer to the "Hints and Tips" chapter in your user manual.

Defrosting the fridge

The refrigerator compartment defrosts automatically during normal use.

  • Defrost water drains into a container at the back of the appliance where it evaporates
  • Regularly clean the drain hole to prevent water overflow. For this purpose, use the drain hole cleaner provided with the appliance (available also in our Webshop).

Defrosting the Freezer (Non NoFrost Models)

Frost can build up over time and should be removed regularly.

When to defrost:

  • When frost reaches 3–5 mm thickness

Steps:

  1. Switch off and unplug the appliance
  2. Remove and store food in a cool place
  3. Leave the door open
  4. Place a cloth or container to collect water
  5. Use a container of warm water to speed up defrosting
  6. Dry the interior thoroughly
  7. Restart the appliance and set to maximum cooling for 2–3 hours
  8. Return food once the temperature stabilises

Important:

  • Do not use sharp or metal tools to remove ice
  • Do not use unapproved devices to speed up defrosting
  • Avoid touching frozen food with wet hands

Frost-Free (NoFrost) Models

  • No manual defrosting required
  • Frost does not build up during operation

Summary

Alarms, flashing symbols, and beeping sounds in your fridge freezer usually indicate temperature changes or a door left open. Identifying the cause and following the correct steps will help restore normal operation and maintain proper cooling performance.

See our helpful video guides

Top troubleshooting issues you may come across on your new Fridge Freezer

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