A washing machine is designed to clean your clothes, but over time, it can become a breeding ground for mildew, mold, and bacteria—especially if it’s not cleaned regularly. One of the most common issues homeowners face is a foul, stagnant water smell coming from their washer. Not only is it unpleasant, but it can also transfer to your clothes, defeating the entire purpose of washing them.
This article offers a comprehensive, step-by-step guide to removing the stagnant water smell from your washing machine and keeping it fresh in the long run.
Understanding the Causes of the Smell
Before you can effectively eliminate the odor, it’s important to understand where it comes from. Common causes include:
- Standing water in the drum or hoses
- Mildew and mold buildup in seals, detergent drawers, and filters
- Residual detergent and fabric softener scum
- Poor ventilation or keeping the door closed for extended periods
Step-by-Step Guide to Remove the Smell
1. Clean the Gasket (Door Seal)
Why It Matters:
The rubber gasket (seal) around the door of front-loading machines is a common spot for water, detergent, and lint to collect. Over time, this moisture-rich environment can lead to mold, mildew, and bacterial growth, which contributes to that foul, stagnant smell.
How to Do It:
- Safety First: Put on rubber gloves to protect your hands from mold or cleaning solutions.
- Prepare Cleaning Solution: Mix a 1:1 solution of white vinegar and water, or use a bleach-based cleaner for heavy mold.
- Clean Thoroughly: Gently pull back the rubber gasket to inspect hidden areas. Wipe it with a cloth soaked in the solution.
- Scrub as Needed: Use an old toothbrush to scrub out stubborn mold or residue from crevices.
- Dry Completely: Mold thrives in moisture, so ensure the gasket is fully dry using a clean towel.
Tip: Repeat this cleaning every 2–4 weeks to keep odors at bay.
2. Clean the Detergent Drawer
Why It Matters:
Residual detergent, fabric softener, and water in the detergent drawer can turn into gunky buildup over time. This sludge becomes a breeding ground for mold and bacteria, causing bad smells.
How to Do It:
- Remove the Drawer: Pull the drawer out gently. Most have a release button; consult the manual if needed.
- Soak and Scrub: Soak it in warm, soapy water or a vinegar solution for 10–15 minutes.
- Scrub Residue: Use a brush or sponge to clean corners and compartments thoroughly.
- Rinse and Dry: Rinse with clean water and let it dry fully before reinserting.
Tip: Wipe the cavity where the drawer slides in as it also collects grime.
3. Run a Hot Cleaning Cycle
Why It Matters:
A hot cleaning cycle disinfects the washer, dissolves detergent buildup, and flushes away odor-causing bacteria. It’s one of the most effective ways to refresh your washing machine.
How to Do It:
- Empty the Drum: Do not put any clothes inside.
- Add a Cleaner:
- Pour 2 cups of white vinegar into the drum OR
- Add ½ cup of baking soda to the drum and ½ cup of vinegar to the detergent tray OR
- Use a commercial washer cleaning tablet like Affresh or Tide Washing Machine Cleaner.
- Run on Hottest Setting: Choose the longest and hottest wash cycle available.
- Repeat if Needed: If the smell is strong, run the cycle twice.
Tip: Doing this once a month keeps your machine clean and odor-free.
4. Check and Clean the Filter
Why It Matters:
The drain filter (usually located at the bottom of the machine) traps lint, debris, coins, and hair. When clogged, it can cause water to sit stagnant and create a musty odor.
How to Do It:
- Locate the Filter: It’s typically behind a small front panel near the base.
- Prepare for Spillage: Place a shallow pan and towel under the filter area to catch water.
- Remove and Clean: Unscrew the filter cap and pull it out. Remove all debris and rinse it under warm water.
- Clean the Housing: Use a damp cloth to clean inside the filter compartment.
- Reinstall: Screw the cap back in securely after it’s dry.
Tip: Clean the filter every 1–3 months depending on usage.
5. Inspect the Drain Hose
Why It Matters:
The drain hose carries dirty water out of your washing machine. If it’s partially blocked or kinked, water can back up and become stale, leading to foul odors.
How to Do It:
- Unplug the Machine: For safety, disconnect power before inspecting hoses.
- Disconnect the Hose: Carefully remove the drain hose from the back of the machine.
- Flush with Hot Water: Run hot water through it or use a long flexible brush to dislodge buildup.
- Check for Mold: If the hose smells foul or is visibly moldy, consider replacing it.
- Reconnect Securely: Make sure there are no kinks or tight bends in the hose when reinstalling.
Tip: A poorly positioned drain hose can also cause backflow—ensure it is properly elevated per the user manual.
6. Air Out the Machine
Why It Matters:
Leaving the washer closed after use traps moisture inside, creating the perfect conditions for mold and bacteria. Ventilation helps the interior dry out completely.
How to Do It:
- Leave the Door Ajar: After every wash, leave the washer door slightly open.
- Leave Detergent Drawer Open: Pull out the detergent drawer a bit to allow airflow.
- Dry the Drum: After especially damp washes, wipe down the inside of the drum with a dry cloth.
Tip: Consider placing a moisture absorber or desiccant nearby in humid environments.
7. Use the Right Detergent
Why It Matters:
Too much detergent—or the wrong type—can leave behind residues that feed mold and bacteria. This is especially true in high-efficiency (HE) machines.
How to Do It:
- Use HE Detergent for HE Washers: Regular detergent creates too many suds and leaves residue.
- Measure Accurately: More detergent does not mean cleaner clothes. Always follow dosing instructions.
- Skip Fabric Softener Occasionally: It can cause buildup over time.
- Run Extra Rinse: If clothes feel slimy or overly sudsy, do an extra rinse to remove excess detergent.
Tip: Once in a while, run a load without detergent to clear out any buildup.
Preventive Tips to Keep Your Washing Machine Smelling Fresh
- Clean once a month: Use vinegar or a washing machine cleaner.
- Wipe down the door and drum after use.
- Use less fabric softener: It can leave a sticky residue.
- Avoid overloading the washer: This ensures proper rinsing.
- Use bleach occasionally: Particularly for white loads to sanitize the machine.
When to Call a Professional
If you’ve tried all these steps and the smell persists, it could be due to:
- A clog deep in the drain system
- Mold inside the machine’s internal components
- Faulty or aging parts that hold water
In such cases, it’s best to contact a certified appliance technician for an inspection.
Final Thoughts
Your washing machine is an essential household appliance, and keeping it clean ensures not only fresh-smelling laundry but also a longer lifespan for the unit itself. Regular maintenance, proper detergent use, and good ventilation habits can prevent stagnant water smells from developing in the first place.
By following these genuine and practical tips, you can restore freshness to your washer and enjoy clean laundry every time.
