The Moldy Smell Problem in Washers
A moldy smell in a washing machine can be frustrating, especially after cleaning the drum. Many people assume a simple drum wash will fix the issue. But in reality, lingering odors come from places you may not think to clean. These hidden spots trap moisture, and that damp environment becomes perfect for mold and bacteria. Even a spotless-looking drum can hide issues behind seals, hoses, or dispensers.
Sometimes, the smell gets worse after a cleaning cycle. That is to say, agitation during the cycle loosens hidden mold and makes it more noticeable. When that happens, it’s a sign the problem isn’t surface-level. What looks clean may still be full of buildup deep in the machine. In those cases, it helps to know where the source really lies before you can fix it.
Hidden Gunk Behind the Door Seal
Most front-load washers have a rubber gasket around the door. This seal keeps water in during cycles. However, it also traps soap, fabric softener, and lint. Over time, that mix builds up and stays damp. Consequently, mold forms inside the folds where it’s hard to see. Wiping the seal with a cloth won’t reach what’s underneath.
We usually check that area first when someone reports a bad smell. Using a flashlight helps spot the residue stuck deep in the rubber folds. In many cases, cleaning this area alone solves most of the odor. To clean it well, we lift each flap, use a mix of water and white vinegar, and scrub with a small brush.
If buildup continues, sealing problems may follow. You might even notice minor leaks. In those situations, washer repair in Burbank becomes necessary before things get worse.
Soap Drawer and Dispenser Mold
Another place that often gets overlooked is the detergent drawer. We’ve seen plenty of washers where the dispenser tray looks fine on the outside but is packed with mold inside. This happens because leftover detergent and softener stay moist. When the washer sits between loads, mold grows quickly.
Pulling out the drawer usually reveals slimy buildup. Even worse, the compartment where the drawer slides in can hold gunk too. Running a clean cycle doesn’t flush these areas properly. For instance, liquid detergent residue can collect behind the tray and stay hidden. Regular cleaning should include removing the drawer completely and washing all parts with warm soapy water.
We also recommend checking the rinse area of the drawer. If water doesn’t flow through it smoothly, there’s likely a clog starting. That could lead to odor or water overflow if ignored.
Clogged Drain Pump Filter and Trapped Debris
A lot of moldy smells trace back to the washer’s drain pump area. The filter in that system catches lint, hair, and debris during the rinse and spin cycles. Over time, it becomes a perfect spot for mold if not cleaned out. The smell can move back through the drum after each cycle and become stronger, not weaker.
We often inspect the filter and find small objects like coins, paper, or wet fabric lint that’s stuck inside. This mess stays damp and begins to smell like mildew. To clean it, unplug the washer, open the drain cover, and carefully remove the filter. A shallow container underneath helps catch any water that drains out.
If you feel unsure about doing this alone or if the filter cover is stuck, appliance repair in Burbank can step in and check it safely.
Moisture Left Behind the Drum
It may surprise some people, but moisture doesn’t always leave the washer completely after a cycle. Behind the drum, some models have spaces that hold extra water or soap film. This area stays out of sight and can start to smell after a while. The issue is more common in homes with frequent use or warm rooms.
We’ve noticed the odor gets worse when the washer door stays shut between cycles. That trapped air makes it humid inside, allowing mold to form more easily. To avoid this, we suggest keeping the door slightly open whenever possible. In addition, try drying the drum with a soft towel after each load.
Also, if your washer has a self-cleaning option, it helps to use it with hot water and a washer tablet once a month. This won’t reach everything, but it helps reduce moisture-related smells over time.
Ventilation and Room Conditions Matter
Some washers smell bad because of where they’re installed. In small laundry closets or tight corners, airflow is poor. As a result, the washer stays damp longer, especially in humid areas. We’ve seen machines that work fine mechanically but still smell bad due to the laundry room environment.
Adding a small fan or opening a nearby window after each cycle can help dry out the space. Likewise, avoiding overuse of liquid detergent helps reduce leftover residue. Most people use more soap than needed, which makes the problem worse. We often advise switching to powder detergent or pods in these cases.
Another tip is to place a small bowl of baking soda nearby. It absorbs moisture in the air and can help reduce musty smells between cycles.
When Internal Hoses Cause Trouble
Washer hoses carry dirty water out and clean water in. Sometimes, a moldy smell lingers because of old drain hoses. These can hold sludge or even small clogs that send odors back through the drum. Even if everything else is clean, the smell will stay if the hose is the problem.
We inspect hoses during routine visits and look for dark patches, sticky residue, or sharp bends. A blocked or kinked drain hose won’t empty properly, so the water sits and grows bacteria. We’ve replaced hoses that looked clean on the outside but were full of hidden gunk inside.
If you cleaned your drum, door seal, and dispenser and the smell still returns, it’s likely time to contact Quick & Pro Appliance Repair Burbank and let us inspect deeper parts before a backup happens.
FAQs
Why does the smell keep coming back even after using vinegar and baking soda?
These cleaners remove surface mold, but they don’t reach hidden areas like behind seals, under drawers, or inside hoses.
Can mold inside my washer affect my clothes?
Yes, mold can transfer to fabric, especially towels or athletic wear. It may leave a damp or sour smell after drying.
How often should I clean my washer to avoid smells?
We suggest doing a full clean monthly. That includes wiping the door seal, washing the detergent tray, and running a hot cleaning cycle.
Is a top-load washer less likely to smell than a front-load one?
Top-load washers have better air flow when open, but they can still develop mold if not cleaned regularly.
Does replacing the door seal fix the smell permanently?
Only if the seal is the main issue. If smells come from deeper parts or hoses, more repair work may be needed.