Last updated: 2026-10-30 · By Fix It or Replace editorial team

Samsung Washer Smells Bad? Mildew, Sewage and Burning Odors — Self Clean Steps, Filter and Drain Hose Fixes, Costs and Repair vs Replace (2026)

Verdict at a glance

Safety check before any DIY (30 seconds)

Stop and don't start the DIY steps below if any of these is true:

• Burning or electrical smell, smoke, or melted plastic (beyond the first couple of cycles on a new washer). Unplug it or switch off its breaker and request service.
• Never mix bleach with vinegar, ammonia, or other cleaners. The fumes are toxic. Use one product per cycle, and run a rinse between them.
• Never run Self Clean with laundry in the tub. Samsung warns it can damage the washer and the contents.
• The water may be hot. Samsung says wait about an hour after a hot cycle (Self Clean, Pure Cycle, Sanitize) before opening the pump filter.
• The washer is still under warranty (year 1, or Samsung's 2026 extended offer). Use Samsung service for any part repair (see the warranty section below).
• Recall check: search your model on the CPSC recall site before paying for a repair.

If none of these apply, the free checks below are safe for most owners.

Fix order at a glance (cheapest first)

DIY tiers: Easy (no panels off) · Moderate (a panel off, power and water off) · Advanced (several clamps or panels) · Pro only (mains wiring, motor, or still under warranty).

Which Samsung washer do you have?

Find the model and serial number on the label inside the door frame (front-load) or under the lid / on the back (top-load). You need it to order the right door boot or filter and to check warranty status.

Some models call the cleaning cycle Self Clean, others Self Clean+ or Pure Cycle. Samsung's reminder light comes on after about 20 washes on top-loaders and 40 on front-loaders.

Five-minute checks before you call anyone

1. Smell the drawer, the door seal, and the drain. If it's strongest at the back or near the standpipe, think drain hose. If it's in the door seal or drawer, think residue and mold.
2. Look at the drain hose. Samsung says a sulfur or sewage smell means the hose is in the standpipe too far and water siphons back. Samsung's pages differ slightly: the error-code guide says between 6 and 8 inches, the sewage-smell step says no more than 8, and the odor-prevention step says no more than 6. Setting it at about 6 inches satisfies all three. Secure the hose so it can't slip down, and check your manual for your model.
3. Don't remove the drain-hose screw. Samsung warns not to remove the screw on the back that holds the hose against the washer. If it's gone, put it back with any screw that fits; if the holder is missing, service is required.
4. Check the level. Samsung says an unlevel washer leaves water and additives behind, which over time causes odors.
5. Check how much detergent you use. Don't fill past the MAX line in the drawer or use more than the detergent's label says for your load. Samsung says too much detergent, or non-HE detergent, builds soap scum in the outer tub that eventually smells.
6. Test for residue: Samsung's trick is to run an empty cycle with no additives. If suds appear, there's residue; keep running empty cycles until they don't.
7. Look at your habits. Clothes left sitting wet in the washer are, per Samsung, one of the most common sources of odor.

How to get rid of mildew smell (Samsung's Self Clean with bleach, 1–4 hours)

Samsung's routine Self Clean doesn't use bleach. This version is only for an existing mildew smell or visible mold.

1. Empty the tub completely. Run a Spin-only cycle to get any water out.
2. Pour liquid chlorine bleach into the detergent compartment, up to the MAX line. Don't use the bleach compartment.
3. Start Self Clean, Self Clean+, or Pure Cycle immediately. Don't leave bleach sitting in the washer. About 1 hour on top-loaders, about 4 hours on front-loaders.
4. Wipe the tub with paper towels when it finishes.
5. Run Rinse+Spin to remove remaining residue. Repeat cycles if mold residue is still visible.
6. Leave the door or lid and the detergent drawer open to dry.
7. Front-loaders: clean the pump filter (next section). Samsung says an uncleaned pump filter will cause odors.
8. If the smell or mold remains after several attempts, Samsung says to request service.

Alternatives Samsung mentions: on models with Sanitize, up to 6 cups of distilled white vinegar or bleach can go directly in the tub (one or the other, never both); and a third-party washing-machine cleaner used per its label. If you don't have Self Clean, Samsung says any washing-machine cleaner will do.

How to know it's fixed: no smell from the tub, drawer, or door seal a day after the cycle; clean laundry smells neutral; no suds on an empty no-detergent cycle.

How to clean the Samsung front-load pump filter (10 minutes)

Samsung calls it the pump filter or debris filter and recommends cleaning it at least monthly or about every 40 washes, whichever comes first. It prevents odors and mold and keeps the washer draining.

You'll need: a towel and a shallow pan (an oil drain pan works); there can be several quarts of water.

1. Wait about an hour if you just ran a hot cycle.
2. Open the access panel at the bottom front (press the top or center of the panel).
3. Pull out the small drain hose, hold the end over the pan, and twist off its cap. It seals tightly. Let the water drain fully.
4. Twist the filter counterclockwise and pull it out (some models push in and twist, like a medicine-bottle cap).
5. Brush it clean with a soft toothbrush. Look inside the housing and make sure the pump impeller is free of lint, coins, or hair ties.
6. Reinsert the filter and twist it clockwise until it locks vertical.
7. Recap the small hose, clip it back, and close the panel.

Door seal (boot) and detergent drawer

Door boot (front-loaders): Samsung's prevention steps say to wipe the drawer, tub, and door seal dry after each wash day; the rubber seal traps moisture more than anywhere else. Pull back the folds and wipe out hair, lint, and black residue. If black spots won't come off after a bleach Self Clean, or the boot is torn, it can keep smelling; that's when a replacement makes sense.

Detergent drawer: pull it out until it stops, lift out the inserts, and rinse them in warm water with a soft brush. To clean the opening, remove the drawer completely (front-load: press in both sides at the end and pull; top-load: pull out and tip up). Clean the recess with a soft cloth or non-metal brush and let it dry before you put it back. Samsung suggests a deep clean about monthly.

Auto-dispense drawers (for example WF50A8800AV): Samsung says wipe after every wash and deep-clean monthly; remove the compartment lids by their pull tabs and dissolve residue with lukewarm water.

Samsung washer codes that can come with odors

Odors don't trigger a code by themselves. These codes point to the drain or detergent problems that leave smelly water behind. Samsung's US code guide has the full list; codes vary by model.

Which part each code points at, and how hard the fix is:

Code meanings from Samsung's US washer error-code guide (source 4), cross-checked 2026-10-30 against the open ApplianceDB sample, which maps each code to a component, a ranked fix, and a DIY difficulty (source 10). Codes vary by model; your owner's manual has the final list.

Diagnose by smell → likely cause or part

1. Musty or mildew smell, black spots in the seal or drawer

Likely causes: detergent and softener residue in the outer tub, moisture in the door boot and drawer, a dirty pump filter, laundry left sitting wet.

Signs: smell strongest in the drum or seal; black or gray film in boot folds; suds on an empty cycle.

DIY difficulty: Easy.

Call a pro if: the smell remains after several bleach Self Clean cycles and a clean filter (Samsung's own advice).

2. Sewage or rotten-egg (sulfur) smell

Likely cause: the drain hose inserted too far into the standpipe, so drain water siphons back (Samsung), or a dry or blocked house drain trap (a plumbing issue).

Signs: smell near the standpipe or behind the washer; worst after the washer sits.

DIY difficulty: Easy for the hose; call a plumber if the standpipe trap or vent is the problem.

3. Stale-water smell and slow draining

Likely causes: a clogged pump filter or drain pump, a kinked drain hose.

Signs: water left in the drum; nd or 5C; clothes come out wetter than usual.

DIY difficulty: Easy for the filter; moderate for the pump.

4. Burning smell

Likely cause: on a new washer, the motor coil coating for the first couple of cycles (Samsung says that's normal). After that, Samsung says to request service: a motor, wiring, or belt (on belt-drive models) fault.

DIY difficulty: Pro only.

Keep it from coming back

Samsung's routine, condensed:

• After every wash: take clothes out promptly; wipe the door seal, drawer, and tub dry; leave the door and drawer open.
• Every load: HE detergent only, within the label dose and below MAX; no fabric softener in the washer (Samsung suggests dryer sheets or a little distilled white vinegar instead).
• Now and then: if you wash cold, run an occasional warm or hot cycle to slow residue build-up.
• Monthly or every 30–40 loads: Self Clean / Pure Cycle (no bleach needed for routine runs).
• Monthly or every 40 washes (front-load): pump filter.
• Once, and after any move: level the washer and set the drain hose at about 6 inches into the standpipe (Samsung's range is 6–8), secured.

Related guides

• Samsung washer leaking
• Whirlpool washer won't drain
• LG washer not spinning
• Samsung dryer takes too long to dry

What Samsung's warranty covers on a washer

Per Samsung's US home-appliance warranty page:

What this means for a smell: Samsung's own odor guide says that, apart from a burning smell, odors are a maintenance issue and service is not required, so cleaning, detergent build-up, and a drain hose set too deep aren't warranty repairs. A burning smell after the first couple of cycles, a failed drain pump, or a defective door boot in year 1 is. Samsung's warranties also exclude installation problems. Keep your dated bill of sale.

→ Samsung US: home-appliance warranty · Request service

Before you pay for any repair: a 4-point check

1. Warranty: year 1, the 2026 extended offer, and any retailer or credit-card extended protection.
2. Recalls: search your model at the U.S. Consumer Product Safety Commission's recall site: cpsc.gov/Recalls. A recall repair is free.
3. Do the free fixes first: two bleach Self Clean cycles, a clean pump filter, a clean boot and drawer, and the drain hose at the right depth. Most odor calls end there.
4. Written quote: ask for part, labor, and trip fee as separate lines.

What it costs: repair parts and pro service (2026)

Part prices checked 2026-10-30 on Sears PartsDirect public search pages (S1–S4). Pro-cost cells tagged [GUIDE] from G1 (Fixr) and G2 (HomeGuide), re-read 2026-10-30; [GUIDE] figures are national averages, not Samsung-specific quotes. Prices change; confirm with your model number.

Tip: run the bleach Self Clean and clean the pump filter before booking anyone. If the smell is gone in a day, you've saved the trip fee.

Repair vs. replace calculator

1. What's the all-in repair cost? → R = trip/diagnostic fee + part + labor + tax, minus anything Samsung's warranty (or a recall) covers
2. What does a comparable new washer cost, all-in? → N = unit + delivery + installation + haul-away
3. How old is your washer, and how long should it last? → Age and Life (use about 10–11 years, the middle of HomeGuide's 8–13-year range, if you don't know)
4. How much have you spent on repairs in the last 2 years? → Past

Step A — Cost ratio: R ÷ N
Step B — Life used: Age ÷ Life
Step C — Repeat-repair check: (R + Past) ÷ N

Repeat-repair rule: if Step C is over 50%, treat it like the bottom-right box: money keeps going into the same machine. And if the part is no longer available for your model, that decides it: replace.

Worked example 1 (illustrative numbers): A 3-year-old Samsung front-loader smells musty. Two bleach Self Clean cycles, a clean pump filter, and less detergent fix it. R = $0.
→ Not a repair.

Worked example 2 (illustrative numbers): A 6-year-old Samsung front-loader has a torn, mold-stained door boot. A tech replaces it: R = $350; N = $1,000; no other repairs.
350 ÷ 1,000 = 35%; life used 6 ÷ 10.5 = 57%; repeat check 35% → Repair (top-right box: usually fine; check the rest of the washer while it's open).

Worked example 3 (illustrative numbers): An 11-year-old Samsung washer has a burning smell and a failing motor, and last year it had a drain pump for $300. R = $500; N = $1,000.
500 ÷ 1,000 = 50%; life used 11 ÷ 10.5 = over 100%; repeat check (500 + 300) ÷ 1,000 = 80% → Replace.

Tips toward replacing: a burning smell with a motor or wiring fault on an older washer, or a second big repair in about 2 years.
Tips toward repairing: it's cleaning, the hose, the filter, the boot, or the pump; the washer is in year 1 or the 2026 extended period.

Why 50%? It's the common rule of thumb, and the one we use. Some technician checklists draw the line a little higher, at about 60% of a new washer's price, so treat a repair that costs 50–60% of new as a second-quote zone, not an automatic replace. The older the washer, the lower the line should go: once it has used more than half its expected life, the same repair buys fewer years.

Who services Samsung washers near you

1. Samsung (warranty or official service). For a burning smell or a failed part in year 1 or an eligible extended period.
→ Samsung US Support: request a repair

2. A partner appliance pro (out of warranty).
Our call line connects you with an independent appliance repair provider in your area. Tell them the kind of smell, that you ran Self Clean with bleach and cleaned the pump filter, and whether the boot is torn; it speeds up the diagnosis.

3. A plumber. If the smell is sewage and the hose is set correctly, the standpipe trap or vent is the likely cause.

4. DIY with the right part. Pump filters and drain hoses are DIY-friendly; a door boot is a bigger but common DIY job. Order by your exact model number.

Questions to ask any technician:

• Is this a maintenance problem or a failed part?
• Is the boot torn, or just stained?
• Is the drain pump clogged or failed?
• Can you split the quote into part, labor, and trip fee?

Optional: is an appliance warranty worth it?

A home warranty (service contract) can cover repairs for a yearly fee plus a per-visit service fee. Read the exclusions carefully: most plans exclude odors, mold, and maintenance. A washer that's already broken is usually not covered.

FAQ

Why does my Samsung washer smell bad?
Samsung says that apart from a burning smell, odors come from how the washer is maintained or installed: detergent and softener residue, moisture left in the seal and drawer, a dirty pump filter, clothes left sitting wet, an unlevel washer, or a drain hose set too deep.

How do I get rid of mildew smell in my Samsung washer?
Run Spin-only, pour liquid chlorine bleach into the detergent compartment to the MAX line, start Self Clean, Self Clean+, or Pure Cycle right away, wipe the tub, run Rinse+Spin, and leave the door and drawer open. Clean the pump filter on front-loaders.

Why does my Samsung washer smell like sewage or rotten eggs?
Samsung says the drain hose is inserted too far into the standpipe and water is siphoning back. Set it so about 6 inches is in the standpipe (Samsung's range is 6 to 8 inches) and secure it. If it's set right and still smells, call a plumber about the trap.

Is a burning smell normal on a new Samsung washer?
For the first couple of cycles, Samsung says yes: the motor coil coating can smell. After that, stop using it and request service.

How often should I run Self Clean on a Samsung washer?
About once a month or every 30–40 loads. The reminder appears after about 20 washes on top-loaders and 40 on front-loaders.

Can I use vinegar in my Samsung washer?
Samsung mentions distilled white vinegar as a softener substitute and, on Sanitize models, up to 6 cups in the tub. Never mix vinegar and bleach.

How often should I clean the Samsung pump filter?
At least monthly or about every 40 washes, whichever comes first (front-loaders only).

Does Samsung's warranty cover a smelly washer?
Not for maintenance odors; Samsung says service isn't required for those. A burning smell after the first cycles or a failed part in year 1 is a warranty matter.

Should I replace a Samsung washer that smells?
Almost never for odor alone. Clean it, fix the hose, and change detergent habits first. Use the calculator above if a part has actually failed.

About the author

Fix It or Replace editorial team — We research appliance repairs using manufacturer documentation, parts-supplier data, and current US cost guides, and we cite every source below. We are not appliance technicians; for anything involving wiring you're unsure about, call a qualified pro.
Last updated: 2026-10-30.

Sources

1. Samsung US Support: "Samsung washing machine or laundry smells bad" (burning smell normal for the first couple of cycles, request service after; sulfur or sewage smell from a drain hose inserted too far, reinsert no more than eight inches; do not remove the hose-holder screw; mildew procedure: Spin-only, liquid chlorine bleach in the detergent compartment to MAX, immediate Self Clean / Self Clean+ / Pure Cycle, wipe, Rinse+Spin, dry, clean pump filter, request service if it persists; prevention: other than burning, odors are maintenance and service is not required; level; drain hose no more than 6 inches; load size; detergent below MAX, HE only, powder preferred; avoid fabric softener; empty-cycle suds test; remove clothes promptly; dry the drawer, tub and seal; Sanitize with up to 6 cups vinegar or bleach; Self Clean monthly or every 30–40 loads). https://www.samsung.com/us/support/troubleshoot/TSG10007246/ (accessed 2026-10-30)
2. Samsung US Support: "Samsung washing machine has a mildew smell or visible mold" (same bleach Self Clean procedure; about 1 hour top-load, 4 hours front-load). https://www.samsung.com/us/support/troubleshoot/TSG10007282/ (accessed 2026-10-30)
3. Samsung US Support: "How to clean your Samsung washer" (occasional warm or hot cycle; leave door and drawer open; Self Clean without cleaner, bleach only for existing mold; reminder after 20 washes top-load, 40 front-load; monthly; any washer cleaner if no Self Clean; drawer removal and cleaning; auto-dispense drawer WF50A8800AV; pump filter at least monthly or about every 40 washes, wait one hour after hot cycles, drain hose cap, counterclockwise removal, check impeller). https://www.samsung.com/us/support/answer/ANS10003197/ (accessed 2026-10-30)
4. Samsung US Support: "Samsung washing machine information and error codes" (nd / 5E / SE / 5C / SC no drain; OE / OC / 0C overflow; 1E / LE / 1C / LC water level or leakage, empty-cycle suds test; SUd / Sd / 5d / SUdS excessive suds; Ub / U6 / Ur / UE unbalanced; drain hose not less than 6 or more than 8 inches into the drain pipe; do not remove the hose-holder screw). https://www.samsung.com/us/support/troubleshoot/TSG10000997/ (accessed 2026-10-30)
5. Samsung US: Home appliance warranty (1-year standard; 10-year Digital Inverter Motor on washers bought on or after 4/1/2026; 2-year extended offer ends 12/31/2026). https://www.samsung.com/us/home-appliances/warranty/ (accessed 2026-10-30)
6. Samsung US: request service. https://www.samsung.com/us/support/service/
7. U.S. Consumer Product Safety Commission: recalls search. https://www.cpsc.gov/Recalls (accessed 2026-10-30)
8. Federal Trade Commission: endorsement and affiliate disclosure guidance. https://www.ftc.gov/business-guidance/resources/ftcs-endorsement-guides-what-people-are-asking
9. Part prices: Sears PartsDirect public search pages, see S-list below (accessed 2026-10-30).
10. ApplianceDB free developer sample (Samsung US washer codes with component, ranked fix, and DIY difficulty; used to cross-check source 4). Data under the Open Database License (ODbL) v1.0. https://github.com/ApplianceDB/ApplianceDB-public (accessed 2026-10-30)
11. Repair cost guides: Fixr (G1) and HomeGuide (G2), see list below (accessed 2026-10-30).

Part price sources (Sears PartsDirect public search results, USD, accessed 2026-10-30; prices change, confirm with your model number):

• S1. Search "samsung washer door boot" (and "door seal"): door boots DC64-01570A $148.04, DC97-19755A $152.51, DC97-18094B $154.61, DC64-02792A $164.38, DC97-19755G $169.39, DC64-00802C $169.71, DC97-19755R $178.55, DC64-03788B $179.09, DC97-19755C $193.95, DC97-21832A $197.59, DC97-14932B $200.34, DC64-03198A $208.96, DC64-01479A $214.75, DC97-16596A $226.86, DC97-16140N $235.31, DC61-20219A $239.24, DC64-03067A $246.57, DC64-00802B $263.89; boot spring clamp DC97-04973B $10.32 (dishwasher and refrigerator seals excluded). https://www.searspartsdirect.com/search?q=samsung%20washer%20door%20boot
• S2. Search "samsung washer drain pump filter": pump filters DC63-00909A $7.10, DC97-14278A $25.40, DC97-16991B $29.07, DC97-14976A $30.91, DC97-16991A $35.54, DC61-02017E $36.68 (covers, hoses and other brands excluded). https://www.searspartsdirect.com/search?q=samsung%20washer%20drain%20pump%20filter
• S3. Search "samsung washer drain hose": drain hoses DC97-07128D $13.28, DC97-12534R $96.22, DC97-18682D $119.46 (internal pump hoses, dishwasher hoses and connectors excluded). https://www.searspartsdirect.com/search?q=samsung%20washer%20drain%20hose
• S4. Search "samsung washer drain pump": DC96-01336H $167.99, DC31-00187A $182.90 (dishwasher pumps excluded). https://www.searspartsdirect.com/search?q=samsung%20washer%20drain%20pump

Pro-cost guide sources [GUIDE] (US national averages, parts + labor, not brand-specific quotes; the guide pages carry 2023–2025 dates, so local quotes may differ):

• G1. Fixr, "How much does it cost to repair a washing machine?" (updated January 31, 2025): average $150–$400; rubber gasket $230–$300 (gaskets prevent mold growth); drain hose $95–$170; pump $300–$400; diagnosis visit $50–$100, labor $50–$150 per hour; replacement $650–$2,100. https://www.fixr.com/costs/washing-machine-repair (accessed 2026-10-30)
• G2. HomeGuide, "How Much Does Washing Machine Repair Cost? (2026)" (byline April 5, 2023): average $100–$400; rubber seal / gasket $275–$600 (the door gasket attracts mold without regular cleaning); pump $150–$350 (part $20–$100); drain hose $100–$200; minimum service fee $70–$130, $50–$125 per hour; new washer $700–$1,300; washers last 8–13 years. https://homeguide.com/costs/washing-machine-repair-cost (accessed 2026-10-30)

Disclosure

Fix It or Replace is an independent site. We are not affiliated with, endorsed by, or sponsored by Samsung. "Samsung" is a trademark of its owner and is used here only to describe the products we cover. Brand names of third-party cleaners are mentioned only because Samsung's support page names them.

• Affiliate links: Some part links go to retailers such as PartSelect and RepairClinic. If you buy through them, we may earn a commission at no extra cost to you.
• Call line: Phone numbers labeled "partner pro" are operated by a third-party lead service that routes your call to an independent repair provider in your area. We may be paid for calls. We don't employ the technicians, and we don't guarantee their work, pricing, or availability. Confirm licensing, insurance, and quotes directly with the provider.
• Prices are estimates and change often. Always get a written quote.
• Safety: Unplug the washer before working on it. Never mix bleach with vinegar, ammonia, or other cleaners. If you're unsure, call a qualified professional.

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