AEG Oven Error F4

⚡ Quick Answer: The AEG oven F4 error indicates a malfunction in the temperature sensor, which can lead to incorrect temperature readings or a failure to heat. This i... ✅ DIY Fixable

What Does Error F4 Mean?

The AEG oven F4 error indicates a malfunction in the temperature sensor, which can lead to incorrect temperature readings or a failure to heat. This issue typically arises from a faulty temperature sensor or an open/short circuit in its wiring. Users may notice the oven displaying the F4 code, failing to start, or exhibiting erratic heating behavior. It's essential to address this problem promptly to restore proper oven functionality.

Common Symptoms:

  • Oven displays F4 error code
  • Oven fails to start or stops operation
  • Temperature reading or heating may be incorrect or non‑functional

Possible Causes

  • Faulty temperature sensor (short/open circuit) (medium)

How to Fix Error F4

DIY Fix Basic checks for F4 code

  1. Turn off the oven and disconnect it from mains power for safety.
  2. Wait a few minutes, reconnect and attempt a restart to see if the error clears (temporary electronic glitch).
  3. Observe if the F4 code appears again when trying to use the oven.

Technician Only Inspect and replace temperature sensor

  1. Disconnect oven from mains power.
  2. Remove access panels as required to access the oven’s internal temperature sensor.
  3. Visually inspect sensor wiring and connector harness to control board for signs of damage, disconnection, or corrosion.
  4. Test the sensor’s resistance with a multimeter to confirm whether it is functioning properly.
  5. Replace the temperature sensor if the test indicates an open or short circuit.
  6. Reassemble and test oven operation.

Parts needed: Oven temperature sensor, Connector harness/wiring if damaged

🛑 When to Call a Pro:
  • If the error persists after verifying and replacing the temperature sensor
  • If wiring or control board issues are suspected beyond basic sensor fault

Next step

Choose the next step for F4

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Temperature Sensor

Monitors the internal temperature to ensure correct operation and prevent overheating.

Typical part-only price
$15 - $35
DIY difficulty
Easy
Estimated time
15-30 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

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Technical Specifications

wattage N/A
component Temperature Sensor
resistance 1000-1100 ohms at room temperature
part_number AEG 4055113900
voltage_rating 240V AC

Common Questions

What does F4 error mean on AEG oven?

F4 error indicates a malfunction in the oven's temperature sensor, leading to incorrect heating.

Can I fix AEG oven F4 error myself?

Yes, you can try resetting the oven by disconnecting it from power and restarting it.

How much does it cost to fix F4 error?

Repair costs range from $30 to $120 for the temperature sensor part, plus labor.

When should I call a technician for F4?

Call a technician if the error persists after replacing the sensor or if wiring issues are suspected.

Sources & References

Data last verified: 2026-07-26

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