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Fix a blender that leaks

We'll pinpoint where it leaks—jar base, lid, or overfilling—then check the gasket, jar seating, and fill level, or tell you when to replace the jar.

Troubleshooting · Home appliances
10–20 min
What you'll need
  • Soft cloth or towel
  • Replacement base gasket or lid gasket (if damaged; order by model number)
  • Replacement jar (if cracked; order by model number)
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 jar base, lid, and fill level.

  • Add a small amount of water and run the blender on low. Watch where liquid appears.
  • Good: You see the leak at a specific location—around the jar base or from the lid. Proceed to Base path or Lid path.
  • Bad: The leak is unclear—dry the area and run again to confirm.

Base path

Goal: Check the jar seating and base gasket.

  • Unplug the blender and remove the jar. Confirm the jar is screwed on firmly when you reassemble—hand-tight is enough.
  • Inspect the base gasket for cracks, tears, or stiffness. Clean any buildup; replace if damaged—order by model number.
  • Good: The jar is seated and the gasket is intact. Reseat firmly and run again—the leak should stop.
  • Bad: The gasket is damaged—replace it. If the jar is cracked, replace the jar.

Lid path

Goal: Check the lid seating and lid gasket.

  • Confirm the lid is centered and fully seated. Many lids click or lock into place.
  • Inspect the lid gasket for cracks or wear. Replace if damaged—order by model number.
  • Confirm the jar is not filled above the max line. Overfilling forces liquid out when blending.
  • Good: The lid is seated and the fill level is correct. The leak stops.
  • Bad: The lid gasket is damaged—replace it. If the jar is cracked, replace the jar.

When to get help

Blenders are simple appliances. Most leaks are fixed by reseating, replacing the gasket, or replacing the jar.

Replace the jar or the unit if:

  • The jar is cracked.
  • The leak continues after you have replaced the base gasket and lid gasket.
  • The base gasket or lid gasket is unavailable for your model.

Call an appliance technician only if the motor base is damaged or you suspect an electrical issue.

Verification

  • No liquid escaping from the jar base or lid during blending.
  • The jar is firmly seated and the lid is closed.
  • No puddles under or around the blender after use.

Escalation ladder

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

  1. Confirm where Pinpoint the leak—around the jar base, from the lid, or from overfilling.
  2. Jar seating and base gasket Reseat the jar firmly; check and replace the base gasket if damaged.
  3. Lid and lid gasket Confirm the lid is seated; check and replace the lid gasket if damaged.
  4. Fill level and jar condition Do not overfill; check the jar for cracks.
  5. Replace jar or unit Cracked jar or persistent leak—replace the jar or the blender.

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 (jar base, lid, overfill)
  • Blender model and jar type (glass, plastic)
  • Whether the base gasket and lid gasket were checked
  • Steps already tried

Does the leak appear around the jar base?

Add water and run the blender. Around the jar base: suspect the base gasket or jar seating. From the lid: suspect the lid gasket or overfilling.

Add a small amount of water and run the blender on low. Watch where liquid appears. Around the jar base: suspect base gasket or jar seating. From the lid: suspect lid gasket or overfilling. 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 jar seated and the base gasket intact?

The jar must be screwed on firmly. The base gasket must not be cracked or worn.

Confirm the jar is screwed on firmly—hand-tight. Remove the jar and inspect the base gasket for cracks or wear. Seated and intact: reseat firmly and run again. Gasket damaged: replace with exact match (order by model number). When you blend, you should see no leaks from the base.

Yes No

You can change your answer later.

Replace base gasket and test

Replace the base gasket with an exact match (order by model number). Reassemble and run a test. The leak should stop if the gasket was the cause.

Done

Reseat and test

Reseat the jar firmly. Run a test. If the leak stops, the jar was loose. If it continues, check the jar for cracks or replace the jar.

Done

Is the lid seated and the jar not overfilled?

The lid must be centered and sealed. Do not fill above the max line.

Confirm the lid is fully seated and the lid gasket is intact. Check the fill level—do not exceed the max line. Lid loose or gasket damaged: reseat or replace the lid gasket. Overfilled: fill to max or below. When you blend, you should see no overflow from the lid.

Yes No

You can change your answer later.

Reseat lid, adjust fill, or replace gasket

Reseat the lid firmly. If the lid gasket is cracked or worn, replace it (order by model number). Fill to the max line or below. Run a test. The leak should stop.

Done

Reseat and test

Reseat the lid firmly. Run a test. If the leak stops, the lid was loose. If it continues, check the jar for cracks or replace the jar.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why would a blender leak?
Common causes: a worn or cracked base gasket, a loose or damaged lid gasket, the jar not fully seated or tightened, overfilling above the max line, or a cracked jar. Pinpoint where the leak appears to narrow it down.
Can I fix a leaking blender myself?
Yes, for reseating the jar, checking and replacing the base gasket, and adjusting fill level. Most blenders have replaceable gaskets and jars. If the jar is cracked or the base is damaged, replace the jar or the unit.
When should I replace a blender jar?
Replace the jar if it is cracked, if the threading is stripped or damaged, or if the base gasket is unavailable or the leak continues after replacement. Order by model number for an exact fit.

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