AEG dishwasher iF0 error
Stop using the machine
The appliance has found more water inside itself than the programme called for. The manufacturer's manual defines the iF1 form specifically as the level being too high. The inlet valve is not shutting fully, so water keeps trickling in after the fill stage has finished is the most common cause.
- Difficulty
- Technician job
- Time needed
- About 30 min
- Checks
- 6 steps
The same fault is shown as iFo, iF1 on some AEG series, depending on the display and the model year.
Before you start
- Close the water stopcock before anything else. An appliance that is overfilling can flood a kitchen while nobody is watching.
- Unplug it before bailing out or reaching into the base. There is more water than there should be inside a casing that carries mains wiring.
- If the level keeps rising with the power off, leave the stopcock shut until an engineer has been. That symptom means the valve is not holding and no amount of cleaning will change it.
- Do not remove panels to reach the inlet valve. It is a mains-connected component on the water side of the appliance.
What it means
The appliance has found more water inside itself than the programme called for. The manufacturer's manual defines the iF1 form specifically as the level being too high.
Most likely causes
Ordered from most to least common, with what each one looks like:
| Cause | How likely | What you would see |
|---|---|---|
| The inlet valve is not shutting fully, so water keeps trickling in after the fill stage has finished | high | Water continues to enter the tub even when the appliance is switched off at the panel |
| Water is siphoning back from the waste because the drain hose has been run too low or connected without the required loop | medium | The hose enters the waste below the level of the tub, or was reconnected during recent work |
| A restriction in the outlet means each fill is added to water that never fully left | medium | The base of the tub was already wet at the start of the cycle |
| Foam is occupying volume the appliance counts as water | low | Suds are visible above the water line and the detergent dose was recently increased |
Fix steps
Tools needed
- Shallow jug
- Cloth
- Torch
-
Close the stopcock feeding the appliance first. If a valve is passing, that is the only thing that will stop it filling.
Expected result No further water can enter, whatever the appliance does next.
-
Switch off at the panel and pull out the plug, then watch the tub for several minutes.
Expected result The water level holds steady rather than continuing to creep upwards. If it does not, go to step 3.
-
If the level kept rising with the appliance dead and the stopcock open, you have a valve that is passing. Leave the stopcock closed and book an engineer, because it will otherwise fill unattended.
Expected result The risk of an overflow is removed while the repair is arranged.
-
Check how the outlet hose is routed. It needs to rise into a loop before it falls to the waste, or the machine will siphon itself full from the drain.
Expected result The hose climbs to a high point before descending, rather than running flat or downhill the whole way.
-
Bail out the excess water, wash the filters and clear the well beneath them so the outlet path is unobstructed.
Expected result The base empties freely and the filters are clean and locked back in.
-
Reopen the stopcock, restore power and run a short rinse, staying with the appliance for the whole cycle.
Expected result It fills once, to a normal level, and empties fully at the end without the fault returning.
Parts needed
| Part | Part number | Typical cost |
|---|---|---|
| Water inlet valve | Varies by model | Varies by supplier |
| Drain hose | Varies by model | Varies by supplier |
When to call a technician
Call a qualified technician for this one. The steps above are safe to carry out yourself to confirm the fault, but the repair involves work that should not be attempted without the right training and equipment.
Common questions
What does iF0 mean on a AEG dishwasher?
The appliance has found more water inside itself than the programme called for. The manufacturer's manual defines the iF1 form specifically as the level being too high. The inlet valve is not shutting fully, so water keeps trickling in after the fill stage has finished is the most common reason for it.
Can I keep using the dishwasher?
No. Stop using the machine until the fault is resolved, because running it in this state risks further damage or a water leak.
Is this something I can fix myself?
No. This one should go to a qualified technician. You can safely carry out the first checks below to confirm the fault, but the repair itself is not a DIY job.
Models this applies to
Related codes on the same machines
- i10 The machine asked for water and not enough arrived, so it stopped rather than starting a wash with an empty tub.
- i20 The machine has tried to empty itself and the water has not gone, so it has stopped with dirty water still standing in the base.
- i23 The cover that seals the drain pump is loose, fitted incorrectly, or missing altogether, so the pump cannot build suction and the water stays where it is.
- i24 Something solid has reached the drain pump and is stopping the impeller turning.
- i30 The anti-flood device in the base of the machine has been triggered by water where there should not be any.
- i40 The appliance cannot get a trustworthy reading of how much water is inside it, so it halts rather than guessing and either running dry or overfilling.
Sources
- Electrolux Group (AEG), AEG support, dishwasher error codes iF0, iFo and iF1 (link) — retrieved 2026-07-26