AEG Microwave Error F131

⚡ Quick Answer: The AEG microwave error F131 indicates an overheating issue, typically related to the magnetron temperature sensor. This error often surfaces during o... ✅ DIY Fixable

What Does Error F131 Mean?

The AEG microwave error F131 indicates an overheating issue, typically related to the magnetron temperature sensor. This error often surfaces during or after heating cycles, leading to shutdowns or refusal to start until a reset is performed. Accompanying symptoms may include unusual buzzing noises, signaling a malfunction within the appliance's heating system.

Common Symptoms:

  • Error F131 appears on display during or after heating
  • Microwave shuts down or refuses to start until reset/cool down

Possible Causes

  • Overheating of magnetron temperature sensor (high)
  • Steamer sensor overtemperature (in combi/steam models) (medium)

How to Fix Error F131

DIY Fix Reset and allow unit to cool

  1. Turn microwave off at mains or by unplugging
  2. Wait at least 15–30 minutes to allow internal components to cool
  3. Restore power and test operation

Technician Only Inspect temperature sensor circuit and ventilation

  1. Disconnect power and disassemble microwave per model service manual
  2. Test magnetron temperature sensor resistance and signal to control board
  3. Inspect ventilation and cooling fan for blockages or failure
  4. Replace faulty temperature sensor or fan as needed

Parts needed: Temperature sensor, Cooling fan assembly

🛑 When to Call a Pro:
  • Error persists after cooling and reset
  • Microwave repeatedly overheats or displays F131 quickly after reset
  • Abnormal noises from cooling fan or magnetron

Next step

Choose the next step for F131

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

Check during diagnosis

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.

Other parts options

Check related components first; use model search as a fallback.

Possible related component

Cooling Fan Motor

Moves cooling air around hot cooking components and electronic controls.

$35 - $120 · Medium · 30-75 mins

Check fit & price
Model number required

Model-compatible Microwave parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

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Technical Specifications

note The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering.
part_number None

Common Questions

What does F131 error mean on AEG microwave?

F131 indicates overheating of the magnetron temperature sensor, causing the microwave to shut down.

Can I fix AEG microwave F131 error myself?

Yes, reset the microwave and let it cool for 15-30 minutes before testing it again.

How much does it cost to fix F131 error?

Estimated repair costs range from $100 to $300, depending on the required parts.

When should I call a technician for F131?

Call a technician if the error persists after a reset or if the microwave frequently overheats.

Sources & References

Data last verified: 2026-07-31

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