AEG F102 fault codewhat it means and how to fix it
The 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.
Take care
What F102 means
Out of roughly 74 F codes on AEG’s UK oven list, F102 is the only one with its own article giving a meaning. That makes it worth more attention than its position in the table suggests. AEG list two causes: the door not being fully closed, and a problem with the electronics. Their remedy runs in three steps — close the door fully, isolate the appliance for a few minutes and restore power, and if F102 comes back, book a service visit.
The first step is worth reading carefully, because AEG’s own wording is incoherent: it says the door lock "may be defective" and then offers closing the door as the fix, which are two different situations. The practical reading is that the oven cannot confirm a locked door, and that a door which is not shut is the cheapest reason for that. One caution on their step two. It tells you to isolate the oven and "plug it back in", and whether that is possible depends on the model.
AEG’s own manuals split: the BPE948230M and BPE842720M manuals say the appliance is supplied with a mains plug and cable, the BPK748380B manual says it is supplied without either, and every one of them requires an isolation device that disconnects the oven at all poles. If there is no plug within reach, isolating means the cooker switch on the wall or the breaker in the consumer unit.
What causes it
| Cause | What is actually happening | How likely |
|---|---|---|
| The door is not fully closed | The first cause AEG name, and the only one with a free fix. The lock cannot engage against a door that has not seated properly on the catch. | Common |
| A problem with the electronics | AEG’s second listed cause, given in exactly those words and with no further detail about which part of the electronics they mean. | Common |
| The door lock assembly has failed | AEG raise the possibility of a defective lock in their own step one, then do not follow it up. It is the component the code is reporting on. | Occasional |
| The supply has been interrupted or the circuit has tripped | AEG send you to the house fuse or the safety switch in the fuse box as part of the remedy, which makes a supply problem part of their own diagnostic path. | Rare |
What to try yourself
Open the door and close it firmly, making sure it seats on the catch rather than resting against the seal.
Isolate the oven for a few minutes. On a built-in model that is the cooker switch on the wall or the breaker in the consumer unit — despite what AEG’s article says, there is no plug to pull on most of these.
While the power is off, check whether the circuit breaker or RCD serving the cooker circuit has tripped. AEG include this in their own remedy.
Restore power and switch the oven on. If F102 appears again, AEG’s instruction at that point is to arrange a service visit rather than to keep trying.
Repeated power cycling is not a fix and will not clear a genuine lock fault. Two attempts is a sensible limit before you accept the code is telling the truth.
Get a qualified appliance engineer to look at your AEG F102
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
£90–£190
Time on site
15 minutes
If it is the lock, expect £35 to £70 for the part plus a call-out. If AEG’s second cause is the right one and the board has failed, a replacement module on a mid-range AEG oven can approach the value of the appliance.
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: door and lock
- 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
- 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
- F113Get it checkedAEG name F113 as an example of a code you might see, then publish no meaning for it. It is one of roughly 74 oven F codes they list and do not define.Related: same brand
Own an AEG oven? Save it and its codes come first next time.
Related guides
Common questions about AEG F102
AEG say to plug the oven back in, but mine is built in. What do they mean?
Their wording assumes a plug, and AEG’s own manuals show that is true of some models and not others. The BPE948230M and BPE842720M manuals say the oven is supplied with a mains plug and cable and tell the installer to leave the plug accessible; the BPK748380B pyrolytic manual says it is supplied without a plug or cable, which means it was wired in by whoever fitted it. All of them require an isolation device that disconnects the oven at every pole, and in a British kitchen that is the cooker switch on the wall, backed by the breaker in the consumer unit. If yours has no plug you can reach, that switch is the equivalent action. We have quoted AEG accurately rather than silently correcting them; the instruction to follow is the one that matches your installation.
Is F102 the same fault as F1?
They are related but not identical, and AEG document them separately. Both concern the door lock. F1 forks on whether the oven is pyrolytic and offers checks on the door assembly itself; F102 is written as a power-cycle-then-service article and names the electronics as a cause in its own right.
Why is this the only F code with a proper explanation?
AEG do not say. Their master table lists around 74 F codes and defines none of them, adding only that the codes exist to help their engineers narrow down causes. F102 having a dedicated article appears to be the exception rather than the start of a pattern.
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 support portal
- Manufacturer technical and service documentation
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.