Noticed a puddle forming under your washing machine? A washer leaking underneath can be frustrating and may indicate a serious issue. Whether you’re dealing with a steady drip or a full-blown leak, it’s important to address the problem quickly to prevent water damage, mould growth, or even electrical hazards. In this guide, we’ll help you identify the most common causes, how to fix them, and when to call in a professional.
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Common Causes of a Washer Leaking Underneath
A leak under your washing machine could stem from various sources. Here are the most likely culprits:
1. Damaged or Loose Hoses
Over time, the water inlet and drain hoses can become cracked, loose or disconnected. These are frequent sources of leaks, especially after moving the washer.
2. Worn Door Seal (Front Loaders)
For front-loading washers, a perished or torn rubber door gasket can cause water to escape during the wash or spin cycles.
3. Blocked or Faulty Pump
If the pump is clogged or malfunctioning, it can’t expel water properly. This leads to leaks pooling beneath the machine.
4. Cracked Tub or Drum
In rare cases, the internal drum or outer tub may develop cracks from wear and tear, causing leakage during operation.
5. Faulty Detergent Drawer
Overfilling or using the wrong detergent may cause overflow from the drawer, appearing as a leak from underneath.
6. Drainage Issues
If your drain is blocked, the water can back up and spill from the base of the washer.
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Step-by-Step Troubleshooting for Leaks
Step 1: Unplug the Washer
Safety first. Disconnect the appliance from the power source to avoid any electrical hazards.
Step 2: Check All Hoses
Inspect inlet and drain hoses for cracks or loose fittings. Replace them if necessary.
Step 3: Inspect the Pump
Remove the front panel (refer to your manual) and check the pump for blockages, leaks or damage.
Step 4: Examine the Door Gasket
Look for tears or signs of mould. Wipe clean and replace if deteriorated.
Step 5: Check the Detergent Drawer
Clean the drawer and ensure you’re using suitable detergent in the correct amount.
Step 6: Test a Short Cycle
After inspecting, run a quick wash to see if the problem persists.
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When to Call a Professional
If the source of the leak isn’t obvious or you suspect internal damage like a cracked tub, call a qualified repair technician. Continuing to use a leaking washer could result in major property damage.
At Dehumidifier Rental, we frequently help homeowners who suffer from water-damaged floors, skirting boards, or carpets due to washer leaks. Consider renting a dehumidifier to speed up the drying process and avoid mould.
Preventing Future Washer Leaks
- Regularly inspect and replace hoses every 3–5 years
- Avoid overloading your machine
- Clean the detergent drawer monthly
- Schedule professional servicing annually
FAQs
Why is my washer leaking underneath only during spin cycle?
This could be due to a loose or damaged drum, or a faulty pump seal.
Can a washer leak cause mould in my home?
Yes, especially if left unattended. Leaks increase indoor moisture, promoting mould growth.
What should I do after discovering a washer leak?
Stop using the machine, unplug it, and mop up the water. Then inspect or call a professional.
Should I rent a dehumidifier after a washer leak?
Absolutely. It will help dry the affected area quickly and prevent mould.
How long does it take to dry a leak-damaged floor?
With a good dehumidifier, it usually takes 24–72 hours depending on the extent of the leak.





