Smelly Washing Machine Cleaning Guide

A smelly washing machine usually needs its detergent drawer, door seal, drain filter and drum cleaned. Remove trapped debris first. Then run the maintenance programme specified in your appliance manual and let the machine dry. This smelly washing machine cleaning guide explains how to find and remove the source of musty, sour and drain-like odours. It also covers prevention and the warning signs that require an engineer or plumber. > Safety first: Check your appliance manual before using a cleaning product. Never mix bleach with vinegar, ammonia or another cleaner. Dangerous gases can form. Wear gloves, ventilate the room and keep cleaning products away from children and pets.[1]

TL;DR: How do you clean a smelly washing machine? Clean the drawer, seal and user-accessible filter by hand before running the manufacturer-approved drum-clean cycle.

1. Empty the drum and remove loose debris. 2. Switch off the machine before cleaning its components. 3. Remove and wash the detergent drawer if the manual permits it. 4. Wipe inside the fixed dispenser housing. 5. Clean and dry every fold of a front-loader’s rubber seal. 6. Drain and clean the user-accessible filter as instructed. 7. Run the named Drum Clean, Tub Clean or Machine Care programme. 8. Use only the cleaner and dose approved for your appliance. 9. Remove wet laundry promptly after future cycles. 10. Leave the door and drawer ajar when it is safe. Do not try to cover the odour with fragrance. A sewage smell, standing water, repeated error or burning odour needs investigation.

Why does a washing machine smell? Washing machines smell when moisture, detergent, fabric fibres and organic dirt remain in hidden areas.

Each wash removes body oils, hair, lint and other soil from clothing. Most leaves with the wastewater. However, some can settle around the dispenser, gasket, outer tub, filter and drain system. Detergent and fabric conditioner may create sticky deposits when they do not rinse away fully. These deposits trap more dirt. Meanwhile, a closed and damp machine takes longer to dry, so musty or sour odours can develop. Not every smell has the same cause. A drain-like odour may come from stagnant wastewater or household plumbing. A burning smell can indicate a mechanical or electrical problem. Therefore, locate the strongest source before choosing what to do next.

Where does residue collect?

Check these areas closely:

Detergent drawer: Powder, liquid detergent and conditioner can collect in corners. – Dispenser housing: Deposits may remain above or behind the removable drawer. – Rubber gasket: Its folds trap water, lint, hair and small objects. – Outer tub: Residue can form beyond the stainless-steel drum you can see. – Drain-pump filter: Wet lint and pocket debris may remain here. – Drain hose and waste connection: Slow drainage can leave stagnant water. – Drum: Forgotten wet laundry can make the drum smell stale.

Why are front-loaders prone to smells around the door? A front-loading machine has a watertight rubber gasket with folds that retain water and debris.

Pull the seal back gently and inspect it with a bright light. Focus on its lowest channel, where water, hair and small pocket items often settle. Never use a knife, screwdriver or sharp scraper on the gasket. A puncture can cause a leak and require a replacement seal. Top-loading machines do not have the same front gasket. However, dirt can collect beneath the lid, around the upper drum rim and inside the dispensers.

Can using too much detergent cause odours? Yes, excess detergent can remain in the machine, trap dirt and contribute to recurring smells.

The right amount depends on the product, load size, soil level, programme and local water conditions. Follow the detergent label and appliance manual instead of routinely filling the compartment. Fabric conditioner can also create a sticky coating when overused. If slime returns soon after cleaning, reassess the dose. Check whether water flows freely through the dispenser as well.

Do cooler wash cycles cause washing-machine smells? Repeated cool washes may leave some detergent and fatty soil behind if the appliance receives no separate maintenance cycle.

That does not mean every laundry load needs a hot programme. Follow each garment’s care label and use a suitable cycle. Separately, run the machine’s dedicated cleaning programme when prompted or recommended in its manual.

What does each washing-machine smell mean? Musty and sour smells often indicate damp residue, while sewage, burning and electrical odours need different checks.

What causes a musty or earthy smell?

A musty smell often comes from moisture and residue in the gasket, dispenser or filter. Wet clothes left in a closed drum can produce a similar odour. Inspect and clean those components before running an empty cycle. Otherwise, the wash may not reach the main source.

What causes a sour or stale smell?

Body soils, trapped fibres and detergent deposits can create a sour smell. Towels, sports clothing and heavily soiled loads may leave more material behind. Overloading or poor rinsing can make that residue harder to remove. Clean the machine’s accessible components. Then review the detergent dose, load size and programme choice.

What causes a rotten-egg or sewage smell?

A sewage-like smell may come from stagnant water, a waste connection or a plumbing trap. Check whether it is strongest inside the drum or beside the household drain. Clean the accessible filter and see whether water remains after a completed cycle. If the smell persists, consult a qualified appliance engineer or plumber.

What does a burning or electrical smell mean? Stop using the machine, switch it off safely and arrange a professional inspection.

Do not attempt another wash or cleaning cycle. Burning rubber, hot plastic and electrical smells are not ordinary residue problems. Carbon monoxide itself has no smell. If a nearby fuel-burning appliance causes concern, follow NHS guidance on symptoms and urgent action.[2]

What do you need before cleaning the machine? Gather gloves, towels, a shallow tray, soft cloths, a small brush and an approved cleaning product if required.

Useful items include:

Rubber gloves
Old towels
A shallow bowl or tray
Soft, colourfast cloths
An old toothbrush or non-abrasive detail brush
Mild washing-up liquid for permitted removable parts
Your appliance manual
A washing-machine cleaner approved by the manufacturer

Avoid metal scrapers, wire brushes and abrasive pads. They may scratch plastic, damage coatings or tear the door seal. Empty the drum before starting. Switch off the machine before manually cleaning the drawer, seal or filter. Disconnect the appliance from the power supply if its instructions tell you to do so.

How do you clean a smelly washing machine step by step? Clean the accessible components first so the maintenance cycle can flush away loosened residue afterwards.

The following order provides a practical framework for front- and top-loading machines. However, the instructions for your exact model always take priority.

Step 1: Empty and inspect the drum

Remove every item from the drum. Look for tissues, labels, coins and other pocket debris. Next, identify where the odour is strongest. Check near the dispenser, door opening and lower filter panel without touching visible residue. This inspection can reveal the source before cleaning changes the evidence. Look for standing water too. Water left in the drum after a completed programme may indicate a drainage problem.

Step 2: Clean the detergent drawer

Remove the drawer only if the manufacturer permits it. Many models have a release tab inside the compartment. Take out approved removable inserts, including the fabric-conditioner siphon where present. Soak these parts in warm, soapy water. Use a small, soft brush to dislodge detergent, conditioner and dirt from the corners. Rinse each piece thoroughly and let it dry. Do not immerse electronic automatic-dosing parts unless the manual expressly allows this. Now examine the fixed housing. Wipe its accessible sides, roof and water jets with a damp cloth. Do not force a brush or tool into internal openings. Reassemble the drawer after all components are clean. If it resists, check the position of each insert instead of forcing it.

Step 3: Clean the door seal or upper rim

For a front-loading machine, pull back each gasket fold gently. Remove hair, lint and loose items by hand while wearing gloves. Wipe the rubber with warm, soapy water or a product approved by the manufacturer. Use a soft brush on textured areas, but do not scrub hard enough to damage the seal. Follow with a clean, damp cloth to remove dirt and cleaner residue. Finally, dry the whole gasket, including its lowest channel. Inspect the seal for splits, distortion and leaks. Dark staining may remain after surface grime has gone. However, a torn or leaking gasket needs repair or replacement. For a top-loader, wipe beneath the lid and around the upper drum rim. Follow the manual when cleaning removable lint traps, dispenser caps or similar components.

Step 4: Clean the drain-pump filter

First, check whether your model has a user-accessible filter. It often sits behind a panel near the bottom front, but designs differ. Place towels and a shallow tray beneath the access point. Water may escape when you open it. If the machine includes an emergency drain hose, follow its manual exactly. Open the filter slowly. Remove lint, hair, coins and other debris. Rinse the removable filter and wipe the accessible cavity with a damp cloth. Inspect the pump impeller only when the manual directs users to do so. Never force, dismantle or reach beyond the accessible parts. Refit the filter securely because a loose or incorrectly seated cap can leak. If it is stuck, stop rather than using pliers or excessive pressure. An appliance engineer can help.

Step 5: Run the approved maintenance programme

Look for a cycle called Drum Clean, Tub Clean, Machine Care or something similar. Use the product and dose specified by the appliance manufacturer. If the machine has no named programme, follow its maintenance instructions. Do not assume its hottest standard wash is appropriate. Never combine several cleaning products to make a stronger treatment. Mixtures may release dangerous gases, damage parts or leave additional deposits. Run an extra rinse only when the appliance manual or product label requires one. Afterwards, wipe the drum opening and gasket dry.

Step 6: Let the machine dry

Leave the door and detergent drawer slightly open so moisture can escape. Only do this when children and pets cannot enter or interfere with the machine. If leaving them open is unsafe, dry all accessible surfaces by hand before closing them. Once clean and dry, the washing machine should smell neutral rather than heavily perfumed.

Should you use vinegar and baking soda? Use vinegar or baking soda only if your appliance manufacturer permits it, and do not assume mixing them improves cleaning.

Vinegar is acidic and can loosen some mineral deposits. However, repeated acid exposure may be unsuitable for certain seals or internal materials. Baking soda is mildly alkaline and abrasive. Incorrect use can leave undissolved powder in the dispenser or drainage system. When the two substances meet, they fizz and partly neutralise each other. The reaction does not prove that the mixture effectively cleans the inaccessible parts of a washing machine. Follow the appliance manual instead. A purpose-made product used as directed may be more appropriate for internal deposits. Most importantly, never mix vinegar with chlorine bleach. UK Government chemical-safety guidance warns that mixing bleach with acids or ammonia can release toxic gases.[1]

Can you use bleach in a washing machine? Only use chlorine bleach when both the appliance manual and product label allow it, and never combine it with another cleaner.

Bleach can damage incompatible materials and irritate the skin, eyes or airways. Measure only the stated dose and place it in the approved compartment. Ventilate the room and complete any rinse required by the directions. If someone inhales fumes or develops symptoms, move to fresh air and seek appropriate medical help.

Can essential oils remove washing-machine odours? No, essential oils cannot clear a filter, remove every deposit or repair a drainage problem.

Essential oils may add fragrance, but fragrance does not remove the source. Oils can also stain clothing or affect components. Do not pour them into the drum or dispenser unless the product and appliance manufacturers expressly approve that use. Find and remove the underlying cause instead.

How do you clean a front-loading washing machine? Prioritise the rubber gasket, dispenser housing and lower pump filter because they can retain water and debris.

Follow this order: 1. Empty and inspect the drum. 2. Wash the approved removable dispenser parts. 3. Wipe inside the fixed dispenser housing. 4. Clean and dry every gasket fold. 5. Drain and clean the user-accessible filter. 6. Run the approved drum-clean cycle. 7. Let the machine dry safely. An empty cycle cannot reliably reach debris trapped in a gasket fold or filter. Therefore, clean those components manually first.

How do you clean a top-loading washing machine? Clean beneath the lid, around the upper drum rim and inside the dispensers before running the approved tub-clean cycle.

Residue may collect above the usual water line. Wipe those surfaces manually because an empty cycle might not reach them. If the machine has a central agitator, remove only the parts identified as user-removable in the manual. Do not dismantle it without specific instructions. Finish with the approved Tub Clean or maintenance programme. Then wipe reachable surfaces and allow them to dry safely.

Why does the machine still smell after cleaning? A hidden area may still contain residue, wastewater may not drain fully or nearby plumbing may be responsible.

Check the following points in order: 1. Dispenser housing: Grime may remain behind or above the drawer. 2. Lowest gasket fold: A quick surface wipe often misses this channel. 3. Drain filter: Wet organic debris can produce a powerful smell. 4. Final drainage: Standing water suggests a blockage or pump fault. 5. Nearby sink and waste pipe: The odour may not start inside the machine. 6. Detergent dose: Persistent slime or foam can indicate overdosing. 7. Drain-hose position: Ask a professional to correct a questionable installation. Do not respond by adding progressively stronger chemicals. If one thorough clean fails, diagnosing the problem is safer than repeatedly treating it.

When should you call an engineer or plumber? Seek professional help if the machine leaks, fails to drain, shows repeated errors or produces a burning or electrical smell.

Contact an appliance engineer when:

The filter will not open safely. – The machine makes an unfamiliar grinding or pumping noise. – Water remains in the drum after a completed cycle. – The gasket is torn, distorted or leaking. – The same error code keeps returning. – The appliance smells of burning plastic, rubber or wiring. Contact a plumber when the smell appears to originate from the sink, waste pipe or trap. Citizens Advice provides guidance on choosing a trader and agreeing to work.[3]

How do you prevent washing-machine smells? Unload promptly, dry damp surfaces, dose detergent carefully and follow the machine’s maintenance instructions.

Remove wet clothes promptly

Take laundry out when the programme finishes. Damp textiles left in a closed drum can become musty and transfer that smell to the machine. If clothes already smell stale, rewash them according to their care labels. Dry them promptly after the new cycle.

Let moisture escape safely

Leave the door and drawer slightly ajar when it is safe around children and pets. Airflow helps remaining water evaporate. Wipe the lowest gasket channel after the last load of the day. This removes moisture and lint before they sit overnight.

Measure detergent carefully

Follow the detergent label and consider load size, soil and water conditions. Excess foam, slime or fast-returning dispenser residue may point to overdosing. High-efficiency appliances may require a compatible low-sudsing detergent. Check the machine’s instructions before changing products.

Avoid overloading the drum

An overloaded washer may not clean or rinse effectively. Follow the capacity for the selected programme. Some fabric cycles accept less than the machine’s stated maximum load.

Empty pockets first

Remove tissues, wrappers, coins, hair clips and other objects. Pocket debris can collect around the gasket or obstruct the filter and pump.

Follow a repeatable maintenance routine

No single schedule suits every household. Usage, laundry type, water and detergent all affect how quickly deposits appear. Use this flexible routine:

After every wash: Remove wet clothing promptly. – After the final daily load: Wipe the seal and let the washer dry. – Regularly: Check the drawer, gasket and drum opening. – As instructed: Inspect the user-accessible filter. – When prompted: Run the appliance’s maintenance programme. – At the first odour: Locate the source instead of masking it.

Can you fragrance the room after cleaning the washer? A separate home-fragrance product can scent a clean laundry room, but it cannot sanitise a washer or repair a fault.

First, remove the source of the smell and let the appliance dry. Never use fragrance to hide sewage, burning, electrical or hot-plastic odours. Once the area is clean, place any fragrance product on a stable and suitable surface. Keep it away from water, detergents, textiles and the moving appliance. Our wax melts are flameless and used in an electric or tealight warmer. They can feel stronger than candles because their fragrance releases quickly when warmed. Replace a melt once its scent fades. For safe use, choose a suitable warmer and do not overfill it. Never add water or leave the warmer unattended. Let the wax cool before replacing it. We make our wax melts by mixing approximately 10% fragrance oil with wax. We pour the mixture into rubber moulds and leave it to set for 24 hours. Our own wax blend contains coconut and rapeseed wax, with nothing else added to the wax. We chose it for a slow, clean fragrance release. It is soy-free, paraffin-free, palm-free, beeswax-free and non-GMO. It uses no bee-harming pesticides. We avoid paraffin over indoor-air-quality concerns. We have hand-poured in small batches in Nottingham since 2018. Small batches give us control over fragrance distribution, wax finish and quality checks. We test every fragrance for cold and hot scent throw. Our standard 220g candles burn for approximately 45 hours when used correctly. The wicks are zinc-free and lead-free. Alternatively, browse our reed diffusers for a separate room-fragrance option. We are not vets, so consult yours before using fragrance around an animal. An animal’s nose is far more sensitive than ours. In our view, forcing a strong scent on a pet unnecessarily is not a kind choice. This is our maker’s view, not medical advice.

What should a complete cleaning checklist include? A complete clean covers trapped debris, detergent deposits, moisture, drainage and safe product use.

Use this checklist before deciding whether the machine needs professional attention:

[ ] Remove all laundry. – [ ] Check the drum for loose objects. – [ ] Wash the detergent drawer where permitted. – [ ] Wipe the fixed dispenser housing. – [ ] Clean the gasket or upper rim. – [ ] Dry accessible surfaces. – [ ] Drain and check the user-accessible filter. – [ ] Refit the filter securely. – [ ] Run the approved maintenance programme. – [ ] Review the detergent type and dose. – [ ] Air the door and drawer safely. – [ ] Investigate any standing water. – [ ] Check nearby plumbing if the smell resembles sewage. – [ ] Request professional help for burning or electrical smells.

Frequently asked questions

What is the quickest way to remove a washing-machine smell? Clean the seal, drawer and filter before running the maintenance programme approved by the manufacturer. An empty wash alone may not reach debris in those areas.

How often should you clean a washing machine? Inspect damp areas regularly and perform maintenance when the machine’s manual or cleaning prompt instructs you. Heavily used appliances may need more frequent checks.

Is a smelly washing machine harmful? An odour shows that the machine needs cleaning or inspection, but smell alone cannot identify a specific health risk. Wear gloves around visible residue and ventilate the area when using approved cleaners.

Why do clothes still smell musty after washing? The appliance may be transferring residue, the load may have rinsed poorly or damp clothes may have remained inside too long. Clean the washer and rewash the clothing according to its care labels.

Can you put dishwasher tablets in a washing machine? Do not use dishwasher tablets unless the washing-machine manufacturer expressly permits them. They are formulated for another appliance and may foam or leave residue.

Should you leave the washing-machine door open? Leaving the door slightly ajar helps moisture escape when it is safe around children and pets. Otherwise, dry the gasket and drum opening manually before closing it.

What should you do if the machine smells like a drain? Clean the accessible filter and check whether the nearby waste connection smells too. Contact an engineer or plumber if the smell persists or the machine drains slowly.

Can a scented product fix the problem? No, fragrance cannot remove residue, stagnant water or an appliance fault. Clean and diagnose the washer before using a separate room-fragrance product.

Are you ready to remove the smell? Start by finding the appliance manual, emptying the drum and inspecting the drawer, seal and filter. Follow this smelly washing machine cleaning guide in order, then save the checklist for your next maintenance clean.

Once the machine is clean, dry and working properly, explore our wax melts or reed diffusers if you want a separate fragrance for the room.

Sources

[1] UK Government, Chemical safety in the home: https://www.gov.uk/government/publications/chemical-safety-in-the-home/chemical-safety-in-the-home [2] NHS, Carbon monoxide poisoning: https://www.nhs.uk/conditions/carbon-monoxide-poisoning/ [3] Citizens Advice, Finding a trader and getting a quote: https://www.citizensadvice.org.uk/consumer/getting-home-improvements-done/finding-a-trader-and-getting-a-quote/