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Fix a coffee maker that leaks

We'll pinpoint where it leaks—carafe, reservoir, or brew basket—then check the carafe seal, reservoir fill level, and filter basket, or tell you when to replace the unit.

Troubleshooting · Home appliances
10–25 min
What you'll need
  • White vinegar (for descaling)
  • Replacement carafe (if cracked; order by model number)
  • Soft cloth or towel
Step 1 of 7

Quick triage — pick your path

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Choose the option that matches what you see. You can jump straight to that section.

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Steps

Goal: Confirm where the leak appears, then check the carafe, reservoir, and brew basket.

  • Run a brew cycle and watch where water or coffee appears.
  • Good: You see the leak at a specific location—around the carafe, from the reservoir, or from the brew basket. Proceed to Carafe path or Reservoir path.
  • Bad: The leak is unclear—dry the area and run again to confirm.

Carafe path

Goal: Check the carafe seating and condition.

  • Unplug the coffee maker and empty the reservoir and carafe. Confirm the carafe is centered under the brew basket and the lid is closed. A tilted or misaligned carafe can cause drips.
  • Inspect the carafe lip and spout for cracks or chips. A damaged lip breaks the seal against the brew basket outlet. Replace the carafe if damaged—order by model number.
  • Good: The carafe is seated and intact. Reseat firmly and run again—the leak should stop.
  • Bad: The carafe is cracked or chipped—replace it. If the leak continues after replacement, check the reservoir and brew basket.

Reservoir path

Goal: Check the reservoir fill level and brew basket.

  • Confirm the reservoir is not filled above the max line. Overfilling causes overflow during the brew cycle. Fill to the max line or fewer cups than you are brewing.
  • Check the brew basket is fully seated in the basket holder and the filter is not folded or overflowing. Reseat the basket and use the correct filter size.
  • If the leak persists, run a descaling cycle per your owner’s manual (white vinegar and water, or commercial descaler). Mineral buildup can cause erratic flow. Rinse with plain water afterward.
  • Good: Fill level and basket are correct. The leak stops.
  • Bad: The leak continues—inspect the reservoir for cracks. A cracked reservoir cannot be reliably repaired—replace the unit.

When to get help

Call an appliance technician if:

  • The leak continues after you have checked the carafe, reservoir fill level, and brew basket.
  • The reservoir or internal tubing is cracked.
  • Water pools near electrical components.

For many drip coffee makers, replacement is often more practical than repair.

Verification

  • No water or coffee dripping from the carafe, reservoir, or brew basket during a brew cycle.
  • Coffee flows evenly into the carafe.
  • No puddles under or around the coffee maker after brewing.

Escalation ladder

Work from the device outward. Stop when the problem is fixed.

  1. Confirm where Pinpoint the leak—around the carafe, from the reservoir, or from the brew basket.
  2. Carafe seating and condition Reseat the carafe and check for cracks or chips; replace if damaged.
  3. Reservoir and brew basket Confirm fill level and reseat the brew basket and filter.
  4. Descale Run a descaling cycle to clear mineral buildup.
  5. Call a pro or replace Leak persists, reservoir cracked, or water near electrical—call a technician or replace the unit.

What to capture if you need help

Before calling support or posting for help, have these ready. It speeds everything up.

  • Where the leak appears (carafe, reservoir, brew basket)
  • Coffee maker model and type (drip, single-serve, etc.)
  • Whether the carafe and brew basket were checked
  • Steps already tried

Does the leak appear around the carafe?

Run a brew cycle and watch where water or coffee appears. Around the carafe: suspect seating or a cracked carafe. From the reservoir or brew basket: suspect overfilling or misalignment.

Run a brew cycle and watch where the leak appears. Around the carafe: suspect carafe seating or a cracked carafe. From reservoir or brew basket: suspect overfilling or brew basket misalignment. Good: you know the location. Bad: leak is unclear—dry the area and run again to confirm.

Yes No

You can change your answer later.

Is the carafe seated and intact?

The carafe must be centered under the brew basket and the lip must not be cracked or chipped.

Confirm the carafe is centered under the brew basket and the lid is closed. Inspect the carafe lip and spout for cracks or chips. A damaged lip breaks the seal. Seated and intact: reseat firmly and run again. Cracked or chipped: replace the carafe with an exact match (order by model number). When you brew, you should see no drips from the carafe area.

Yes No

You can change your answer later.

Replace carafe and test

Replace the carafe with an exact match (order by model number). Reseat and run a brew cycle. The leak should stop if the carafe was the cause.

Done

Reseat and test

Reseat the carafe firmly. Run a brew cycle. If the leak stops, the carafe was misaligned. If it continues, check the reservoir and brew basket.

Done

Is the reservoir overfilled or the brew basket misaligned?

Overfilling the reservoir or a misaligned brew basket can cause overflow or drips outside the carafe.

Confirm the reservoir is not filled above the max line. Check the brew basket is fully seated and the filter is not folded or overflowing. Overfilled: fill to max or fewer cups. Misaligned: reseat the basket and use the correct filter size. When you brew, you should see coffee flowing into the carafe, not around it.

Yes No

You can change your answer later.

Adjust fill and reseat basket

Fill to the max line or fewer cups. Reseat the brew basket and filter. Run a brew cycle. The leak should stop if overfilling or misalignment was the cause.

Done

Descale and check reservoir

Run a descaling cycle per your owner's manual (white vinegar and water, or commercial descaler). Rinse with plain water. If the leak continues, inspect the reservoir for cracks. A cracked reservoir cannot be reliably repaired—replace the unit. If water pools near electrical components, call a technician.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would a coffee maker leak?
Common causes: a carafe not seated under the brew basket, a cracked or chipped carafe lip, overfilling the reservoir, a misaligned brew basket or filter, or mineral buildup causing overflow. Pinpoint where the leak appears to narrow it down.
Can I fix a leaking coffee maker myself?
Yes, for reseating the carafe, checking the brew basket, adjusting fill level, and descaling. If the carafe, reservoir, or internal tubing is cracked, replace the carafe or the unit. Internal repairs often require a technician.
When should I call a technician for a leaking coffee maker?
Call a technician if the leak continues after you have checked the carafe, reservoir fill level, and brew basket; if the reservoir or internal tubing is cracked; or if water pools near electrical components. Many drip coffee makers are inexpensive—replacement may be more practical than repair.

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