Washing machine still smells after cleaning? What to check next

First, work out what you have already cleaned

“I cleaned the washer” can mean running a tablet through a cycle, wiping the visible drum, or completing several separate maintenance jobs. Those leave different things to check.

Compare your completed work with these parts of your manual:

• Drum or tub cleaning: Did you use the specified cleaning programme and an approved product, if one is required? A normal hot wash is not automatically equivalent. Samsung describes Self Clean as reaching areas a normal cycle may miss. Samsung’s cleaning guide
• Detergent dispenser: Check the instructions for the drawer, removable inserts and accessible housing. Dispenser designs vary, so use the removal method shown for your machine.
• Door seal, where fitted: Check the accessible folds for trapped lint, hair or residue, using the manual’s cleaning method. LG identifies retained debris and moisture here as possible contributors to odor. LG’s odor guide
• An owner-accessible drain-pump or debris filter, if fitted: This is a separate maintenance task on applicable machines. Do it only if your manual identifies it as owner maintenance and explains access. Do not assume every washer has the same filter or access panel.

Filter maintenance can release water, which may still be hot after a cleaning cycle. Follow your manual’s instructions for disconnecting power, cooling, draining and refitting parts. If the instructions do not match your machine, ask support before opening anything. Samsung’s filter precautions, LG’s maintenance guide

If you find an omitted owner-maintenance step, complete that step as directed. If you have already completed all the applicable work, move on to the installation and support questions below rather than repeating the same clean indefinitely.

Check the instructions before changing cleaners

Manufacturer pages can give different chemical instructions, even when they describe a similar smell.

For example, LG’s US musty-odor page specifies an oxygen-based drum cleaner for the Tub Clean procedure it describes and cautions against chlorine bleach or acidic cleaners in that procedure. Samsung’s US odor page describes a chlorine-bleach procedure specifically for a mildew smell or visible mold, while distinguishing it from routine Self Clean.

These are examples of different instructions, not permission to use either treatment in your washer. Confirm the product, compartment, dose and cycle against your exact model’s guidance and the cleaner label. If the instructions conflict, ask the manufacturer to resolve that conflict before proceeding.

Never mix bleach or disinfectants with other cleaners. Dangerous vapors can result. If you have already tried several products and are unsure what remains, pause further chemical cleaning and ask the washer manufacturer or cleaner’s support service how to proceed. Do not improvise a neutralizing mixture. CDC’s cleaning-safety advice

If the smell returns, review what happens between washes

Notice whether the odor was present immediately after cleaning or returned after another load or a period with the machine closed. This gives support a clearer account of the problem; it does not identify the cause by itself.

Check your everyday routine against the manual:

• Remove finished laundry promptly.
• Use the recommended detergent type and amount for the load.
• Follow the machine’s drying and ventilation guidance after use.

LG links excess detergent or softener and trapped moisture with musty odors. Where your manual recommends leaving the door or drawer open, do so only when you can keep children from accessing the machine. LG’s musty-odor guidance

These habits can help prevent recurrence, but they do not establish that maintenance is the only explanation for a persistent smell.

When installation or support is the better next step

If the specified maintenance is complete, check whether the manual’s troubleshooting section points to the drain setup. Samsung includes drain-hose installation among its odor checks and directs owners to the manual for the full requirements. Samsung’s odor guidance

Do not diagnose a siphoning problem from the smell alone or copy a drain-hose height or insertion depth from another model’s guide. Ask the installer or manufacturer to check your setup against the correct installation instructions. If the concern is the household drain or plumbing, a qualified plumber may be needed. There is no need to dismantle the washer or pull it out just to gather observations.

If you suspect a gas leak, leave the area without operating electrical switches or plugs and contact your local gas emergency service or emergency services from a safe place. Do not assume a gas-like smell is washer residue. PHMSA’s gas-leak safety guidance

Contact support when the smell persists after the applicable manufacturer procedure, or sooner if the washer is failing to drain, leaking or showing an error. LG’s US odor guide includes service as the next step after unsuccessful repeated tub cleaning; it does not set a universal number of attempts for every washer. LG’s escalation guidance

Give support the details that avoid another generic cleaning answer

Have the model number and your country ready. Explain which parts you cleaned, which products and programmes you used, and whether the smell disappeared and returned or never improved. Mention any visible residue, water left in the drum, leaks or error messages. Photographs of safely visible areas can help; do not remove covers to take them.

Ask: “For this model, have I completed the recommended owner maintenance, and what should be checked next?” That gives the conversation a clear starting point without guessing which part has failed.

About this guide

This is a source-based explanation, checked on 8 October 2026. Everyday Sift has not tested cleaning products or inspected your washer. Your model’s manual and local manufacturer support govern the next step.