The short answer for the F models
On the AEG F dishwasher models, a machine that will not start leads somewhere the brand-generic article does not put first — the machine is part-way through a cycle it never finished. The brand-generic ordering opens instead with this: the door latch and its switch. It moves down behind the lead here, because this family is a short run on a common stem, so its behaviour is consistent in a way the brand as a whole is not.
What you observe on these models
- It beeps or flashes and then goes quiet — A refusal with a reason, even if the machine cannot tell you what it is.
- A click from the door area and no cycle — The latch is trying and the switch is not confirming.
- It starts and then cancels within a minute — Something checked at the start of the cycle is failing that check.
- NEAR MISS — the whole kitchen has no power — Check the consumer unit before anything else; the machine is fine.
Causes, most likely first on the F family
- The machine is part-way through a cycle it never finished — A machine paused mid-programme will not accept a new one until it is reset or allowed to drain out. Ranked first on the F models.
- The door latch and its switch — No machine will run with the door unconfirmed, and the latch is a mechanical part that wears. Second.
- The furniture door and the switched supply behind the cabinet — A built-in machine is held shut by its own catch through a furniture panel, and it is usually fed from a switched spur or an outlet inside a neighbouring cupboard. Third.
- The control board or the touch panel — A panel that registers presses it never received, or a board that no longer drives the cycle. Last, and that is the point of the order.
- Body: The spine for the F family records 4 model codes built on a common stem — a short run rather than a long one, which is why a single ordering covers all of them. Where this departs from the brand-generic ordering: the cause that moves up on these models is this one — the machine is part-way through a cycle it never finished — and the brand-generic lead moves down behind it.
Check in this order on the F models, and why
- Look at the gap round the furniture panel and find the spur — First: Both are outside the machine, both are invisible from the front, and between them they account for most built-in machines that will not start.
- Look for a lock or a delay indicator on the panel — Second: Ten seconds, and it saves people a service call more often than anyone would guess.
- Open the door and look at the sump — Third: Water in there means the machine is mid-cycle or waiting, and the list moves to drainage.
Before you open anything
Safety
Isolate the machine at the breaker and close the supply valve before touching a hose or a panel: a capacitor holds its charge past the switch, and the sump still holds water when the cycle has finished. Gloves on — that water is caustic — and never tape or wedge the door catch to watch a cycle.
Models covered by the F family
Reference| Model number | Family key |
|---|---|
| F8242FI | aeg:dishwasher:f |
| F8242FI-18 | aeg:dishwasher:f |
| F8642FI | aeg:dishwasher:f |
| F8642SS | aeg:dishwasher:f |
When to call a technician
Call when the door latches firmly, the breaker and the spur are on, no lock or delay is set, the water is open and the machine still will not begin — that puts it at the door switch, a thermal device or the board, all behind a panel. Call rather than retry if the breaker trips as soon as you reset it, or if you can smell hot plastic at the machine. On the F models the line sits where the check stops being one you can make from outside the cabinet. When you book, say that the machine is built in if it is.
Other symptoms covered for the F family
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
