A leaking dishwasher can be a frustrating (and messy) problem. Water damage can harm your floors and cabinets, so it’s important to address leaks quickly. But before you call a repair technician, there are several common causes and simple fixes you can try yourself.
Common Causes of a Leaking Dishwasher & How to Fix Them
1. Door Seal (Gasket) Damage
Signs: Water pooling around the front of the dishwasher.
Solution:
- Inspect the rubber door gasket for cracks, tears, or food debris.
- Clean it with a damp cloth and check for proper alignment.
- If damaged, replace the gasket (available from appliance parts stores).
2. Loose or Faulty Door Latch
Signs: Water leaking from the sides when running.
Solution:
- Ensure the door closes tightly and latches securely.
- Adjust or replace the latch if it’s broken.
3. Clogged or Misaligned Drain Hose
Signs: Leaking underneath the dishwasher.
Solution:
- Check the drain hose for kinks, cracks, or blockages.
- Ensure it’s properly connected to the sink drain or garbage disposal.
- Replace the hose if damaged.
4. Worn-Out Pump or Pump Seal
Signs: Water leaking from the bottom during cycles.
Solution:
- Locate the pump (usually at the bottom of the dishwasher).
- Inspect for cracks or worn-out seals.
- If leaking, the pump may need replacement.
5. Overfilled Detergent or Wrong Detergent
Signs: Sudsy leaks or excessive bubbles.
Solution:
- Use only dishwasher-specific detergent (not regular dish soap).
- Avoid overfilling the detergent dispenser.
6. Cracked or Loose Tub
Signs: Persistent leaks from inside the dishwasher.
Solution:
- Inspect the interior tub for cracks.
- If found, professional repair or replacement may be needed.
7. Faulty Water Inlet Valve
Signs: Leaking when filling with water.
Solution:
- Check the valve for cracks or loose connections.
- Replace if necessary.
8. Improper Installation or Leveling
Signs: Leaks only during certain cycles.
Solution:
- Ensure the dishwasher is level (adjust the feet if needed).
- Check that it’s securely installed under the counter.
When to Call a Professional
If you’ve tried these fixes and your dishwasher is still leaking, it may be time to call an appliance repair technician. Issues like a cracked tub, major pump failure, or electrical problems should be handled by a professional.
Prevent Future Leaks
Regular Maintenance – Clean filters and check hoses monthly.
Use the Right Detergent – Avoid hand soap or excessive detergent.
Inspect Seals & Hoses – Replace worn parts before they cause leaks.
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