How to Clean a Smelly Washing Machine in Ashford

Published September 2026 | Washing Machine Smells Bad How to Clean It

This checklist covers every step you need to find, fix, and prevent bad smells coming from your washing machine - from the quick visual checks you can do in five minutes through to the annual professional inspection that catches developing faults before they turn into expensive repair bills. Sticking to a consistent routine is one of the most reliable ways to stop mould and bacteria taking hold, keep your laundry coming out fresh, and get more years out of your appliance.

Quick Visual Checks Anyone Can Do

Before reaching for any cleaning products, a proper look around the machine tells you where the smell is actually coming from. Run through this list whenever a bad odour appears, and make it a monthly habit even when things seem fine.

1. Pull back the door seal and inspect the folds. The rubber gasket on front-loading machines traps water, hair, and fluff inside its grooves. Black or brown mould patches here are one of the most common causes of washing machine smells our engineers encounter in Ashford homes. If the door gets closed immediately after every wash, trapped moisture turns to mould within days.
2. Remove the detergent drawer completely. Most Bosch, Hotpoint, and Beko models have a small release tab that lets you pull the drawer all the way out. Look for white, waxy detergent residue and black mould inside each compartment, and inside the housing recess behind where the drawer sits. That recess is often the worst offender and gets overlooked entirely.
3. Smell the drum directly with the door open. A musty or earthy smell means mould. A rotten-egg or sewage odour points to a drain or pump problem. A sharp chemical smell usually indicates undissolved detergent or fabric conditioner stuck inside the drum or pipework.
4. Check the filter panel at the bottom front of the machine. It sits behind a small plastic access flap. If there is water dripping from it between washes, or a noticeable smell when you open the panel, the filter needs cleaning straight away.
5. Look under and around the machine. Water marks or damp patches on the floor indicate a slow leak or an overflowing filter. Any moisture sitting near the machine creates the exact conditions mould needs to thrive.
6. Check the waste hose at the back. If the hose sits too far down into the standpipe, it creates a siphoning effect that pulls dirty water back into the drum between cycles. The end of the hose should be secured no lower than 60cm from the floor - a very common fix our engineers make on first visits across Kent.

Monthly Maintenance Tasks

Monthly upkeep takes around 30 to 40 minutes and prevents the large majority of smell problems. Our engineers recommend these as the core of any washing machine maintenance routine.

Clean the detergent drawer fully. Soak it in warm water with a little washing-up liquid, then scrub every compartment with an old toothbrush. Pay close attention to the fabric conditioner section, which builds up a waxy film that is easy to miss during a quick rinse. Wipe out the housing recess with a damp cloth, getting into the top corners where mould typically starts.

Wipe down the door seal. Use a cloth dampened with a solution of warm water and white vinegar, or a dedicated washing machine cleaner. Work all the way around the full circumference, pulling the rubber folds back to clean inside them properly. If there are significant mould patches, a diluted bleach solution - roughly one part bleach to four parts water - will remove them effectively. Rinse the area thoroughly afterwards and dry it off.

Run a drum clean cycle. Most Samsung, LG, and Bosch machines have a dedicated drum clean programme built in. If yours does not have one, run the hottest wash available - typically 60 or 90 degrees - with an empty drum. Add either a proprietary drum cleaner, 500g of soda crystals, or a cup of white vinegar directly into the drum. Use one at a time and do not mix them. This high-temperature wash kills bacteria and breaks down the residue that low-temperature cycles leave behind, which is the main reason smells develop in the first place.

Clean the filter. Place a shallow tray or an old towel under the filter panel before you open it - there will be water. Unscrew the filter cap slowly, let it drain, then pull the filter out and remove any accumulated fluff, hair, or debris. Rinse it under the tap, wipe out the housing with a cloth, and screw it back in firmly.

Leave the door and drawer open after every wash. This single habit makes more difference than any cleaning product. Air drying the drum and seal after each cycle stops mould from establishing itself in the first place.

Annual Professional Checks You Should Book

Some parts of a washing machine need a trained engineer and proper diagnostic equipment to assess accurately. Booking an annual appliance check is the responsible step that most Ashford homeowners skip until something goes wrong.

Inspect the heating element for limescale. Scale builds up on the element over time, particularly in the harder-water areas of Kent. Heavy build-up reduces heating efficiency, which means your machine works harder to reach temperature - and cycles that fail to get hot enough allow bacteria to survive each wash, compounding the smell problem with every use.

Check the pump and drainage system. A pump that is partially blocked does not always show clear symptoms until it fails. A professional inspection can identify restricted flow before it causes flooding or leaves standing water inside the drum after cycles.

Examine the door seal for tears and perforations. Small splits in the gasket allow water to seep into the machine body and into the insulation behind the drum, where it cannot dry out. This is a common cause of persistent musty smells that do not respond to cleaning - no amount of vinegar or drum cleaner will fix a perforated seal.

Test the thermostat and element output. If your machine is not hitting its set temperature, a 60-degree cycle may actually be running at 45 or 50 degrees - not hot enough to deal with bacteria. Our engineers use the Voltrade GoFIX diagnostic tool to check actual operating temperatures and element performance without needing to disassemble the machine, which keeps the check quick and the cost down.

Check the water inlet filters. Small mesh screens where the water supply connects to the machine can become restricted over months of use. This affects fill rates and can lead to incomplete rinsing, leaving detergent residue in the drum that contributes to recurring smells.

A routine annual service for a washing machine in the Ashford area typically costs between 60 and 120 pounds depending on the engineer and the scope of the inspection. That is considerably less than the 150 to 400 pounds a preventable repair commonly costs once a fault develops further.

Warning Signs That Need Immediate Attention

Some symptoms go well beyond what regular cleaning can address. If you notice any of the following, stop using the machine and get it checked by a professional.

• A sewage or rotten-egg smell that persists after a drum clean. This can indicate a blocked or failing pump, a problem with the drain connection, or contamination inside the machine body that has gone well past surface mould.
• A burning smell during a cycle. Switch the machine off at the wall socket immediately and do not run it again until an engineer has inspected it. A burning odour during operation is a potential electrical fault.
• Visible mould inside the drum itself. Mould on the seal is common and cleanable. Mould visible inside the drum or appearing through the door glass suggests contamination has reached into the machine structure.
• Clothes consistently smelling worse after washing than before. If laundry regularly comes out stale or musty despite your cleaning routine, the problem is likely a failing element, a pump not draining fully, or a cracked seal - none of which respond to surface cleaning.
• Water remaining in the drum after a cycle ends. Standing water in the drum after a wash is a clear sign of a drainage fault, and it will generate bad smells very quickly.

Owners of older Hotpoint or Beko machines should be aware that certain drum seals on models from the 2015 to 2020 period were prone to developing small tears that are not always visible without close inspection. If you have had persistent smell issues on one of these machines despite thorough cleaning, ask an engineer to check the seal condition specifically.

Your Maintenance Schedule

A simple calendar removes the guesswork and makes it easy to keep on top of this without relying on memory.

After every wash: Leave the door and drawer open to air. Wipe the visible part of the door seal if there is visible moisture.

Weekly: Quick wipe of the door glass and the accessible part of the seal with a damp cloth.

Monthly: Full clean of the detergent drawer and housing. Run a drum clean cycle at 60 or 90 degrees. Clean the filter. Check the waste hose position at the back of the machine.

Every three months: Run a 90-degree maintenance wash with soda crystals or a dedicated drum cleaner. Carefully inspect the door seal folds for early signs of mould, discolouration, or splits in the rubber.

Annually: Book a professional appliance inspection. This matters more as the machine ages - for any machine over five years old, or for households in Kent where harder water accelerates limescale build-up, annual checks pay for themselves by avoiding larger repairs.

Checklist Questions

Why does my washing machine still smell even after I have cleaned it?

If the smell persists after you have cleaned the drawer, seal, and filter, and run a hot drum clean cycle, the problem is likely internal rather than surface-level. The most common causes our engineers find are a partially blocked pump leaving residual water inside the machine, a cracked door seal allowing water into the body of the appliance, or a heating element not reaching its set temperature. Running mostly low-temperature washes without periodic hot cycles allows bacteria and biofilm to build up inside the pipes and drum over time. A professional diagnostic check will identify which of these applies to your specific machine.

How often should I run a drum clean cycle?

Once a month is the standard recommendation, and it applies regardless of how often you actually use the machine. If your household runs five or more washes a week, or if you wash predominantly at 30 or 40 degrees, consider running a drum clean every two to three weeks instead. Most Samsung, LG, and Bosch machines have a dedicated drum clean programme built in - check your manual for the recommended frequency for your model, as it varies between manufacturers.

Is it worth repairing a smelly washing machine or should I replace it?

In most cases, a persistent bad smell is a maintenance or component issue rather than a reason to replace the machine outright. If the cause turns out to be a failed pump, a torn seal, or a worn heating element, repair costs for a machine under eight years old are typically between 80 and 200 pounds - well below the cost of a new appliance. If the machine is over ten years old and needs a major internal repair, replacement often makes more financial sense. An Ashford-based appliance engineer can give you a clear cost comparison after a diagnostic check.