Washing Machine Parts
Washing Machine Parts: Diagnosing Leaks and Worn Seals
A leaking washing machine usually points to one of three parts: the rubber door seal, the drain pump, or a hose. The door seal is the most common cause of front-loader leaks because it takes constant water, detergent and movement. Find your model number on the door frame or opening to order the correct part.
Type your appliance model number (e.g. RF23R5201SR) or an old part code (e.g. DA29-00020B).
Not sure where to find it? How to find your model number →
What are the signs of a worn washing machine door seal?
A worn washing machine door seal shows visible cracks, tears or splits, water leaking from around the door during a cycle, a musty smell, and black mould in the folds. The rubber may feel stiff or distorted and no longer sit flush against the drum rim. Any of these means the seal needs attention.
Watch for these specific symptoms:
- Cracks, splits or tears in the rubber, even small ones
- Water pooling at the front of the machine during or after a wash
- A persistent musty or mouldy odour from the drum
- Black mould or slime built up in the folds of the seal
- Rubber that feels stiff, brittle or warped instead of soft and flexible
Mould on its own does not always mean the seal is finished. Try a deep clean first. If the rubber is cracked underneath, the seal is failing and should be replaced. A door boot typically lasts around 5 to 7 years depending on use.
Seals vs pumps vs hoses: what is causing the leak?
Where the water appears tells you the likely part. A leak from the door front points to the door seal. A leak underneath during draining points to the drain pump or its connections. A leak at the back or that worsens during filling points to an inlet or drain hose. Locating the puddle narrows it quickly.
| Leak location and timing | Likely cause |
|---|---|
| Front, around the door, during wash | Door seal worn or torn |
| Underneath, during drain or spin | Drain pump or pump hose |
| Rear or under, during fill | Inlet hose or connections |
| Steady drip when machine is off | Inlet hose or valve |
To confirm, run a short cycle and watch where water first appears. Check the door seal folds for trapped grit or a tear. Inspect the pump filter and the hose clips for looseness or splits.
How do I find my washing machine model number?
Find your washing machine model number on the rating plate, usually inside the door opening or on the door frame. Open the door and look around the rim or on the frame edge for a label marked MODEL, TYPE or PNC. It may also sit behind the filter flap or on the rear panel.
Common locations to check, in order:
- Inside the door opening, on the rim or chassis
- On the door frame edge
- Behind the bottom filter access flap
- On the rear panel of the machine
Look for the field labelled MODEL, TYPE, CODE or PNC, not the marketing name on the front. Quote that full code when ordering a seal, pump or hose, because dimensions vary between models even within one brand.
How hard is it to fit washing machine parts yourself?
Difficulty varies by part. Replacing inlet and drain hoses is straightforward and beginner friendly. Clearing or swapping the drain pump is moderate. Fitting a new door seal is the most fiddly, as it uses two retaining spring clamps and must seat evenly all the way round. Always isolate power and water first.
A rough guide to DIY difficulty:
| Part | Difficulty | Why |
|---|---|---|
| Inlet or drain hose | Easy | Unclip, swap, re-clamp |
| Drain pump or filter | Moderate | Access panel and residual water |
| Door seal or boot | Harder | Two spring clamps, even seating |
For any job, switch off the power and turn off the water supply. Have a towel and shallow tray ready, as residual water will spill from the pump or filter.
When should you replace a washing machine door seal?
Replace the door seal when it has visible cracks or tears, when leaks persist after cleaning and reseating, or when the rubber has gone stiff and no longer sits flush. Cleaning fixes mould and odour, but structural damage cannot be cleaned away. A torn or perished seal will keep leaking until it is replaced.
Decide with a simple test:
1. Deep clean the seal and check for mould and trapped debris
2. Run a cycle and watch for leaks
3. Inspect the rubber for cracks, splits and stiffness
If the leak stops after cleaning, the seal was just dirty. If water still escapes, or you can see tears or perished rubber, replace it. Leaving a torn seal risks water reaching the floor and the machine's electrics.
Frequently asked
Can I just clean a mouldy door seal instead of replacing it?
Often yes. Mould alone does not mean the seal is damaged. Deep clean the folds and run a hot maintenance wash. Replace the seal only if it still leaks afterwards, or if the rubber is cracked, torn or perished beneath the mould.
How long does a washing machine door seal last?
A door seal typically lasts around 5 to 7 years, depending on how often the machine is used, the detergents used, and wash temperatures. Once cracks or stiffness appear, replacement is the reliable fix rather than further cleaning.
Why is my washing machine leaking only during the spin cycle?
Leaks during spin or drain usually come from the drain pump, the pump hose, or a clamp that has worked loose, rather than the door seal. Check the pump filter and hose connections underneath.
Do I need the full model number to order a part?
Yes. Quote the full model code from the rating plate, not the front-of-machine name. Seals, pumps and hoses differ in size and fitting between models, even within one brand.