AEG F111 fault codewhat it means and how to fix it
The food probe is plugged in but not pushed fully home. Note that this is the exact opposite of C2, which is the oven objecting to the probe being connected at all.
Before you start
What F111 means
AEG’s definition is one sentence: the food sensor is not correctly inserted into the socket, and the remedy is to fully plug it in. What makes this worth a page is the pairing. The same component generates two codes with directly opposing instructions, and which one you get depends entirely on what the oven is trying to do. Ask for a pyrolytic clean with the probe connected and you get C2, which is cleared by taking the probe out.
Ask for a cook with the probe half-seated and you get F111, which is cleared by pushing it further in. An owner who has met one of these and then meets the other can reasonably conclude the oven has changed its mind. The socket is at the top right inside the cavity. A probe plug that is in far enough to stay put but not far enough to make a reliable contact is exactly the failure this reports, and it is easy to produce when you are working around a hot shelf.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| The probe plug is not seated fully in the socket | The only cause AEG publish, and their remedy addresses nothing else. A plug can hold in place by friction well before it makes proper contact. | Common |
| The socket or plug contacts are dirty | The socket sits inside a cooking cavity, so grease finds its way in. A contaminated contact reads to the oven the same way an unseated plug does. | Occasional |
What to try yourself
Find the socket at the top right of the inside of the oven. It is above eye level for most people, which is part of why the probe gets left half-connected.
Pull the probe out completely, then push it back in until it stops. AEG’s wording is to fully plug the food sensor into the socket, and fully is the operative word.
Let the cavity cool first. The socket is inside the oven and the probe is usually being handled at the point in a cook where everything around it is hot.If it recurs, look at the plug contacts in good light for baked-on residue and clean them when the oven is cold and isolated.
Get a qualified appliance engineer to look at your AEG F111
We do not pass enquiries to a repair firm, so there is no form here. When you book a qualified appliance engineer, tell them the make, the model and the exact code or message on the display, and ask whether they carry parts for this make — that is what turns one visit into a repair rather than a quote.
What it costs to fix
Typical repair cost
Depends on the cause
Time on site
3 minutes
Nothing. Pushing the plug home costs nothing, and a replacement AEG food probe is around £30 if the lead has genuinely failed.
Typical UK prices including parts and labour, updated September 2026. Your quote may differ.
Own this appliance and had this code? . Nothing is published until a person has read it.
Related AEG fault codes
- F1Get it checkedOne code, two published meanings. On a pyrolytic AEG oven it is about the door not closing. On a non-pyrolytic one AEG call it an electronic fault and send you straight to service.Related: same brand
- DemoUsually simple to fixThe oven lights up, accepts settings and never heats. AEG admit demo mode can switch itself on after a power cut, and the code to switch it off is 2 4 6 8.Related: same brand
- C3Usually simple to fixTwo different things share this label. Selected from the cleaning menu it is a three-hour clean. Shown on the display as Err C3, it means the door is not closed.Related: same brand
- F102Get it checkedThe one F code AEG actually define for the UK. They put it down to the door lock or the electronics, and give you two things to try before booking an engineer.Related: same brand
- SAFEUsually simple to fixSAFE or a padlock symbol means one of three things on an AEG oven, and only one of them needs you to do anything. Work out which before you start pressing buttons.Related: same brand
- C1Usually simple to fixCheck first whether you picked C1 off the cleaning menu, where it is the one-hour light clean. As a fault it means the telescopic rails are still in the oven.Related: same brand
Own an AEG oven? Save it and its codes come first next time.
Related guides
Technical review
Not reviewed by an engineer
No engineer has read this page. Severity follows what the manufacturer publishes, and we would rather tell you that than let a byline imply a sign-off.
Sources and how we verified this
We establish the facts from the sources below and then write the explanation ourselves. We do not copy manufacturer wording and we do not host their manuals.
- Manufacturer technical and service documentation
- Manufacturer support portal
This page has not been reviewed by an engineer, and we would rather tell you that than imply otherwise. The severity rating follows what the manufacturer publishes: where they say isolate the appliance and call someone, so do we.