Practical

Maintaining your washing machine and dishwasher: the habits that make them last

A well-maintained washing machine or dishwasher cleans better, uses less energy, smells fresher and lasts longer. Good news: a few minutes a month is all it takes. Here are the habits, appliance by appliance, with a simple schedule to keep handy.

By Clément, appliance specialist at Nimestore · 6 min read · Published 10 October 2026
In brief
  • Filters : washing machine pump every 2-3 months, dishwasher base every 1-2 weeks
  • A hot empty cycle per month against odours and biofilm
  • Regeneration salt set to your water hardness
  • Door and door seal ajar between cycles

Why maintenance matters so much

Our habits have changed: we wash more often at 30 or 40 °C and use Eco programmes that heat less. That is good for the bill, but it makes it easier for the biofilm (a layer of grease, detergent residue and bacteria) and limescale to build up. The result: smells, less fresh laundry, dull dishes and, eventually, pump or heating element failures.

Most of the 'breakdowns' reported to us in store are actually clogged filters or forgotten maintenance. The best habit: a simple calendar, and the steps below.

The washing machine, part by part

The drain pump filter

It hides behind a small access panel at the bottom front of the machine. It catches coins, buttons, hair clips and lint. Clean it every 2 to 3 months, and as soon as the water drains slowly.

  1. Unplug the machine and let the water cool if a hot wash has just finished.
  2. Place a cloth and a shallow dish: there is always some water left.
  3. Open the panel. If your model has a small emergency drain hose, drain the water through it first.
  4. Slowly unscrew the filter, remove the objects and lint, and rinse it under the tap.
  5. Screw it back in fully (a badly refitted filter leaks) and close the panel.

The door seal

Wipe it after heavy washes, pulling back the fold of the bellows: you often find socks, coins and black mould marks in it. A cloth with a little soapy water is enough. Then leave the door ajar so everything can dry.

The detergent drawer

White LG washing machine with the detergent drawer open on the left of the control panel
The detergent drawer usually pulls out completely for rinsing.

It gets clogged with detergent and softener, and can go mouldy. Remove it (often by pressing a small catch), rinse it in hot water with an old toothbrush, and clean its housing too. Leave it ajar between washes. If your machine has automatic dosing, clean the reservoir according to the manual, especially if you change detergent.

The monthly maintenance cycle

Once a month, run empty the drum cleaning programme (Drum Clean on Samsung, 'Drum clean' on the selector of many Bosch models, depending on the model) or a cotton cycle at 60 or 90 °C. Some washing machines remind you themselves, Samsung for example every 40 cycles. It is the best weapon against smells.

Limescale and detergent dosing

Parts of Wallonia have hard water: ask your supplier about your water hardness. In hard water, adjust the detergent dose according to the packaging. But don't use too much: excess detergent causes foam, rinses poorly, clogs the machine and can even cause leaks from the drawer.

To avoid: pure bleach and highly concentrated vinegars used repeatedly, which can damage seals and rubber parts. Follow the products and doses recommended in your brand's manual.

The tumble dryer, in brief

Empty the lint filter after every cycle, rinse the base filter or the condenser once a month (except self-cleaning condensers), empty the water tank and leave space for air around the appliance. All the details are in our tumble dryer guide.

Bottom flap open on a Bosch tumble dryer giving access to the condenser
On models without self-cleaning, the condenser should be rinsed once a month.

The dishwasher, part by part

The base filter

Stainless steel dishwasher base, with the cylindrical filter and the lower spray arm
The filter unscrews a quarter turn, at the bottom of the tub.

This is the most important step. The filter traps food residue: when it's clogged, the water stagnates and the dishes come out dirty. Rinse it every 1 to 2 weeks under the tap, with a soft brush if needed, then put it back in place properly and lock it.

The spray arms

If washing starts to get worse, remove the arms (they unclip or unscrew depending on the model) and clear their small holes with a toothpick. Also check that they turn freely: a dish that's too tall can block them.

The regeneration salt

The built-in water softener prevents limescale on the dishes and in the machine. It regenerates with dishwasher-specific salt (not cooking salt). Two settings to make once and for all:

  • Set the water hardness in the appliance menu, using the value from your water supplier.
  • Fill the salt container (at the bottom of the tub) as soon as the indicator lights up. On first use, add the amount of water specified in the manual.

The rinse aid

It helps water slide off the dishes: fewer drops, fewer streaks, better drying. Fill the dispenser (on the door, next to the detergent compartment) when the indicator lights up. Too much rinse aid leaves a greasy film; too little leaves streaks and wet dishes.

The maintenance cycle and the door seal

Every 1 to 2 months, run an empty cycle at high temperature, with a dishwasher cleaner if your manual recommends it (some Siemens models have a Machine Care programme). Wipe the door seal and the bottom of the door, where residue builds up out of reach of the jets.

C
Clément's tip

Stick a small reminder inside the door of your cupboard for cleaning products: "dishwasher filter on Sunday, hot cycle on the washing machine on the first of the month". It may seem silly, but it's the best anti-breakdown guarantee I know, and it's free.

Bad smells: where they come from

DeviceMost common causeSolution
Washing machineBiofilm in the seal, the drawer and the tub; door always closedHot empty maintenance cycle, seal and drawer cleaned, door left ajar
Washing machineStagnant water in the pump filterEmpty and rinse the filter
Washing machineDamp laundry forgotten in the drumRewash; some models have an anti-odour mode after a cycle (FreshCare+ on Whirlpool)
DishwasherClogged filter, food residueRinse the filter, hot maintenance cycle
DishwasherDirty dishes left waiting for several daysPre-wash programme or cold rinse, door left ajar
BothSewer smell: trap or drain connectionCheck the trap and the height of the drain hose (as per the manual)

The calendar to keep handy

FrequencyWashing machineDishwasher
After every cycleDoor and drawer left ajarDoor left ajar once drying is finished
Every weekWipe the door seal with a clothRinse the bottom filter (every 1 to 2 weeks)
Every monthHot empty maintenance cycle; rinse the drawerCheck salt and rinse aid; door seal
Every 2 to 3 monthsDrain pump filterSpray arms; hot maintenance cycle (every 1 to 2 months)
Once a yearCheck hoses (inlet and drain), levellingCheck hoses and the hardness setting

If a problem still appears, our page common faults helps you check the essentials before calling the after-sales service. And to get more out of your programmes, read the washing programmes explained.

Choosing an appliance that is easy to maintain

When buying, a few details make life easier for years: an accessible pump filter, a drum cleaning programme with a reminder, a detergent drawer that slides out easily, a self-cleaning condenser on the tumble dryer and, on the dishwasher, drying by opening the door, which limits residual moisture in the tub. See our guides washing machine and dishwasher.

Appliances that are easy to maintain

The above tips are general advice. The manual for your appliance always takes precedence, particularly for approved cleaning products and access to the filters. Nimesclub members often get a reduced price on our appliances: the product page takes precedence.

Frequently asked questions

Why does my washing machine smell bad?

Most often, because you always wash at low temperature and close the door right after the cycle. A biofilm forms in the seal, the drawer and the drum. Run a hot empty maintenance cycle, clean the seal and the drawer, and leave the door ajar.

Do tablets that do everything replace regeneration salt?

Not always. They contain a softener, but in hard water it often isn't enough. If you see white streaks, set the hardness in the appliance menu and fill the salt container. Follow the manual: some models adjust for use with tablets.

Do you need a special product to descale the washing machine?

A maintenance cycle at 60 or 90 °C handles most cases. In very limescale-heavy water, a washing machine descaler from time to time helps. Avoid aggressive homemade mixtures for the seals and follow the manufacturer's manual.

How do I find out my water hardness?

Your water supplier states it, often on its website or on your bill (in Wallonia, SWDE or your municipality). Note the value and enter it in the dishwasher menu to set the softener.

Need advice?

Come and see the appliances in person

At our Temploux shop, we open the doors and compare drums and finishes. Or ask our expert sales adviser online, right now.

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