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To clean a Miele dishwasher filter, switch the machine off, lift out the filter combination as the manual shows, and rinse every part under running water. Poor cleaning results and standing water can trace to a dirty or wrongly refitted filter. If the filter is clean and seated and the problem remains, stop before reaching into the pump area.
A dirty dishwasher filter is easy to overlook, and a symptom alone does not identify a failed part. Work from observations that are safe and repeatable, and keep them in case a Miele service visit follows.
Cleaning is owner care; testing and disassembly are not. Never override a lock, safety switch or error message to keep the dishwasher in use, and make a few notes now to help the diagnosis go faster and more accurately.
Start with the simple conditions
Make sure the dishwasher is off and has cooled, then use the manual to find the filter and twist and lift it out only the way it directs. Keep the machine where it is and do not force panels, fittings or controls. If a simple adjustment helps, run one normal program before concluding.
Food residue lodged in the mesh or filter housing can hurt cleaning and drainage, especially in households that skip pre-rinsing their dishes. Look for the pattern too: every program, only certain loads or settings, or only after the machine has run a while. That detail beats restarting it repeatedly.
| Step | Interval | Approach |
|---|---|---|
| Rinse the filter | Once a month | Warm running water |
| Brush off residue | If needed | Soft brush |
| Look over the housing | Whenever you clean | Gentle wipe |
What does the dishwasher filter combination do?
On many Miele dishwashers, the filter combination in the cabinet base keeps coarse soil out of the circulation system so it does not come back through the spray arms. The manual for one dishwasher class says poor cleaning results can come from a dirty or incorrectly installed filter combination, which blocks spray-arm jets, or from items blocking the arms.
The display on that class asks you to remove and check the filters after every 50 programs, so the reminder is a prompt rather than a fault.
| What you notice | What it can point to | What you can safely check |
|---|---|---|
| Gritty dishes | Filters loaded with soil | Remove and rinse the filter combination |
| Water left in the tub | Filter or drain blockage | Clean filters, then check drain hose for kinks |
| Spray looks weak | Spray-arm jets blocked | Look at jets and items blocking the arms |
| Rattle after refit | Filter not flat or arm not locked | Reseat the filter flat and refit the spray arm |
Safe checks that protect the appliance
Your use-and-care manual lists model-specific controls, filter access and upkeep intervals. Clean only parts it names as owner-serviceable, use the cleaning products it suggests, and refit every removable part as it was designed to sit.
Run through this before the next program: remove obstructions, trim a very full load, and confirm airflow, the water supply and door clearance are free. Resetting over and over can conceal an intermittent fault, with water, heat or pressure left where it should never be.
- Copy down any displayed message or error code before clearing it.
- Check visible hoses, vents, seals and plugs by eye, leaving electrical connections as they are.
- Run a single controlled test rather than several attempts in a row.
Fine for owners
- Rinse in warm water
- Use a soft brush
- Seat the filter firmly
Technician only
- Using sharp tools
- Running without a filter
- Reaching into the pump area
In what order should the filter parts be cleaned and refitted?
The manual sequence is to switch off, remove the lower spray arm, take out coarse soil first, lift out the filter combination, pull the microfilter off its plastic ring and rinse all filters under running water. A soft brush helps on stubborn film. Reinstall the combination flat in the cabinet base, then refit the lower spray arm by its thread and turn it clockwise until the arrow points to the lock symbol. The spray arm secures the filters, so a loose arm means loose filters.
Glass splinters are hard to see, so move slowly and keep fingers out of crevices. The manual’s drain-pump instructions are separate, and they begin with switching off and unplugging.
Know when the symptom needs diagnosis
If the basic checks leave the symptom as it was, stop where owner service ends. Wiring inside, heating circuits, pumps, motors, refrigerant lines, gas connections and control boards require proper test gear and a technician able to confirm a safe repair.
Arrange service soon if performance is worsening, a breaker trips, a leak appears near electrical parts, there is a hot or burnt smell, a new grinding noise starts, or the machine cannot finish a normal program. Do not keep using an appliance with a safety warning.
What to tell the technician
Tell the technician the model number, the exact symptom, when it began, the settings selected and what the safe checks revealed. A photo of a code or a brief note about a sound can help, but do not take a cover off to get one.
Careful observation is no substitute for repair, though it is the best first step. Take care of the simple conditions, keep useful error information, and leave electrical, gas, sealed-system and internal mechanical work to a qualified Miele technician.
Common questions
How do I know the filter is back correctly?
It sits flat in the cabinet base and the lower spray arm is locked with the arrow at the lock symbol. If it rocks or the arm will not lock, remove and reseat it.
Can I run the dishwasher without the filter to save time?
No. The manual says to never run a program without the filters or the lower spray arm, since soil can enter the circulation system and block it.
Do I need dish soap or a brush on the filters?
Running water usually handles most of it, and the manual allows a soft brush when needed. Skip sharp tools, which can damage the mesh.
Need help now? Visit our services page or contact us.
Official manuals and support notes are available on Miele Support.
Before you buy a part, write the whole model number down; revised boards and sensors can change which part number is the right one.
Cycling power once can clear a temporary fault, while a code that returns again and again usually points to a physical cause.
Keep filters and vents clean between visits. Blocked airflow often looks like an electrical or sensor failure.
If water, a burning smell or sparking shows up, stop using the appliance and have a professional inspect it.