Washing machine WWA 120 WCS - 12738310
Everything to use, troubleshoot and repair your washing machine Miele WWA120WCS12738310: its user manual to view, its durability index, and fixes for common faults.
8.0/10Durability scoreRepair help
The most common problems, and the best answer we have for each. Every answer states how closely it applies to your appliance.
My washing machine won't start — what can I do?
The tutorial below, published by SOS Accessoire, addresses this symptom on a washing machine. It was not filmed on this exact model: locations and fixings may differ. ▶ watch answer
Repair tutorial · Source : SOS AccessoireWhat does the error code on my washing machine mean?
The tutorial below, published by SOS Accessoire, addresses this symptom on a washing machine. It was not filmed on this exact model: locations and fixings may differ. ▶ watch answer
Repair tutorial · Source : SOS AccessoireMy washing machine no longer drains — what can I do?
The tutorial below, published by SOS Accessoire, addresses this symptom on a washing machine. It was not filmed on this exact model: locations and fixings may differ. ▶ watch answer
Repair tutorial · Source : SOS AccessoireMy washing machine is noisy — what can I do?
The tutorial below, published by SOS Accessoire, addresses this symptom on a washing machine. It was not filmed on this exact model: locations and fixings may differ. ▶ watch answer
Repair tutorial · Source : SOS Accessoire
See all help (6 problems)
My washing machine trips the breaker — what can I do?
The tutorial below, published by Spareka, addresses this symptom on a washing machine. It was not filmed on this exact model: locations and fixings may differ. ▶ watch answer
Repair tutorial · Source : SparekaMy washing machine smells bad — what can I do?
The tutorial below, published by Spareka, addresses this symptom on a washing machine. It was not filmed on this exact model: locations and fixings may differ. ▶ watch answer
Repair tutorial · Source : Spareka
Tutorials and guides
Answers taken from tutorials published by repair specialists. They cover this family of appliances, not this exact model — but the parts they name are the ones the manufacturer declared for it.
Tutorials published by spare-part specialists. Unless stated otherwise, they show the operation on an appliance of the same family — not on your exact model.
- General guide
Machine à laver pleine d’eau ? 4 méthodes pour la vider rapidement !
Filmed on another model: locations and fixings may differ.
Spareka - General guide
Indice de Réparabilité lave linge Loi anti-gaspillage - Les machines a laver les plus réparables
Filmed on another model: locations and fixings may differ.
Spareka - General guide
Comment nettoyer le système TwinDos de votre lave-linge Miele ?
Filmed on another model: locations and fixings may differ.
Miele France - General guide
Comment mettre à niveau et surélever un lave-linge Siemens ?
Filmed on another model: locations and fixings may differ.
Siemens Home France, Belgique / België, Nederland - General guide
Porte de lave-linge bloquée ? Voici quelques astuces simples pour l'ouvrir sans la casser !
Filmed on another model: locations and fixings may differ.
Sogedis - General guide
Installation d'un lave-linge ou d'un lave-vaisselle pose libre | Siemens Home Belgique
Filmed on another model: locations and fixings may differ.
Siemens Home France, Belgique / België, Nederland
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Maintaining your appliance
The regular habits that prevent breakdowns and extend your appliance’s life. Each tip shows how often to do it; those marked “For this model” are specific to your appliance, the rest apply to the whole family.
- Leave the door ajarAfter each use
After each cycle, leave the door and detergent drawer slightly open for a few hours. The drum dries out, and mildew smells and residue on the seal never get a chance to build up.
- Clean the detergent drawerMonthly
Pull out the drawer and rinse it under hot water once a month to dissolve caked detergent and softener. An old toothbrush clears deposits inside the housing.
- Clean the drain filterMonthly
Behind a hatch at the bottom of the front panel, the filter traps buttons, coins and lint. Empty it over a bowl once a month: a clogged filter is the number-one cause of a machine that no longer drains.
- Run an empty 90 °C washMonthly
Once a month, run a hot empty cycle (90 °C or a maintenance program), with no detergent or a little citric acid. It degreases the drum and heating element and prevents the biofilms behind bad smells.
- Descale according to water hardnessEvery 3 months
In hard-water areas, descale every three months with citric acid or a dedicated product. Limescale builds up on the heating element and stretches heating times until it fails.
Manuals & guides
- User manualView manual
Updated 29 July 2026
- Auto-réparationOpen document
Updated 29 July 2026
Spare parts & repairs
No spare part listed
We do not have verified information for this model yet.
Manufacturer resources
Entry points declared by the manufacturer in public data. These are not documents: they lead to a site where you still have to look up this model to find a part or get support.
- Manufacturer supportwww4.miele.de
External site — you still have to search for the model there.
Durability index
Durability index (FR)Since 2025, the durability index replaces the repairability index for televisions and washing machines. It adds reliability — how well the product withstands use — to ease of repair alone.
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