• Clogged or Dirty Water Reservoir
Over time, mineral buildup from hard water can clog the water reservoir, causing water to leak out. If the reservoir isn’t seated properly, water might spill over when the machine is brewing.
- Clean the water reservoir regularly to prevent mineral buildup.
- Make sure the reservoir is properly aligned and fully inserted into the machine.
• Damaged or Worn-Out Seals
Coffee machines have rubber or silicone seals that prevent water from leaking. With time and regular use, these seals can become worn out or cracked, leading to leaks during brewing or when the machine is idle.
- Inspect the seals around the water reservoir, carafe, and brewing basket for signs of wear or damage.
- Replace any damaged seals to prevent further leaking.
• Loose or Incorrectly Inserted Carafe
If your coffee machine’s carafe is not properly positioned or the lid is loose, water can spill during brewing, leading to leaks. Sometimes, the carafe might not be seated all the way, causing coffee to overflow from the brew basket.
- Ensure that the carafe is correctly aligned and seated in the brewing area.
- Tighten the carafe lid if it’s loose to prevent leaks.
• Cracked or Damaged Brew Basket
The brew basket holds the coffee grounds and filter during the brewing process. If the brew basket is cracked or damaged, it can cause water to leak out around the sides. This often happens if the basket is roughly handled or overloaded.
- Check the brew basket for any cracks or chips.
- Replace a damaged basket to prevent water from leaking onto the counter.
By addressing these common causes, you can often prevent leaks and extend the life of your coffee machine. Regular maintenance, such as cleaning and inspecting seals, will keep your coffee maker brewing efficiently without the mess.
You should call a professional coffee machine service specialist when your machine shows signs of malfunction, such as inconsistent brewing, unusual noises, leaks, or failure to heat properly. If cleaning and basic troubleshooting don’t resolve the issue, a specialist can diagnose and fix complex problems, preventing further damage.