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Breville Duo-Temp 800ESXL Gasket Replacement

Introduction

If you’ve rescued a Breville Duo-Temp 800ESXL espresso machine from the dumpster or simply haven’t used yours in a while, chances are the group head gasket needs replacing.

The gasket creates the seal between the portafilter (which contains the coffee) and the group head of the espresso machine, ensuring water is pressurized through the grounds for good extraction. A cracked gasket will allow for pressure and water leaks resulting in poor espresso.

Before beginning, make sure your espresso machine is unplugged and completely cool.

What you need

  1. Breville Duo-Temp 800ESXL Gasket Replacement, Gasket: step 1, image 1 of 3 Breville Duo-Temp 800ESXL Gasket Replacement, Gasket: step 1, image 2 of 3 Breville Duo-Temp 800ESXL Gasket Replacement, Gasket: step 1, image 3 of 3

    • With your left hand, strongly grip the handle of the portafilter.

    • Pull the handle to your left. This will unlock the portafilter.

    • If the portafilter lock is too tight, place your hand on the top or bottom of the machine to provide additional leverage.

    • Gently push down to release the portafilter.

    Edit

  2. Breville Duo-Temp 800ESXL Gasket Replacement: step 2, image 1 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 2, image 2 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 2, image 3 of 3

    • Slide the drip tray towards you to remove and set aside.

    • Two holes in the middle of the tray are available to make the tray easier to hold on to when removing.

    • Grasp the water reservoir using the front indention and the bottom of the tank.

    • Pull the water reservoir towards you to remove and set aside.

    • The drip tray and the water reservoir may contain water. Avoid spills if possible.

    Edit

  3. Breville Duo-Temp 800ESXL Gasket Replacement: step 3, image 1 of 1

    • Carefully lay the espresso machine on its side.

    • The espresso machine is top heavy with the drip tray and the water reservoir removed.

    Edit

  4. Breville Duo-Temp 800ESXL Gasket Replacement: step 4, image 1 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 4, image 2 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 4, image 3 of 3

    • Line the Phillips screwdriver up with the screw located in the center of the group head screen.

    • Turn the screwdriver counter clockwise to remove the 6 mm Phillips #1 screw.

    • If the screw is tight, use both hands to turn the screw driver.

    • Applying pressure to the screwdriver will help prevent stripping the screw.

    Edit

  6. Breville Duo-Temp 800ESXL Gasket Replacement: step 5, image 1 of 2 Breville Duo-Temp 800ESXL Gasket Replacement: step 5, image 2 of 2

    • Insert the opening tool between the housing and the gasket.

    • Pry the gasket loose from the housing.

    • The screen is contained within the gasket and will not be damaged by prying the gasket loose.

    Edit

  7. Breville Duo-Temp 800ESXL Gasket Replacement: step 6, image 1 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 6, image 2 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 6, image 3 of 3

    • Remove the gasket and screen from the machine.

    • Peel back the gasket from the screen in a circular motion.

    • If the gasket is firmly stuck to the screen, soak in warm soapy water for approximately 30 minutes to loosen the coffee buildup.

    • Discard the old gasket.

    Edit

  8. Breville Duo-Temp 800ESXL Gasket Replacement: step 7, image 1 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 7, image 2 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 7, image 3 of 3

    • Soak the group head screen in warm soapy water.

    • Clean the group head with a nylon espresso machine brush and warm soapy water.

    • Scrub the group head screen with a nylon espresso machine brush.

    • The group head screen should be completely free of coffee oils and build up.

    Edit

  9. Breville Duo-Temp 800ESXL Gasket Replacement: step 8, image 1 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 8, image 2 of 3 Breville Duo-Temp 800ESXL Gasket Replacement: step 8, image 3 of 3

    • Place the group head screen inside the new gasket.

    • Firmly press the screen into the seal in a circular motion.

    • The screen fits snuggly but easily within the gasket.

    Edit

  10. Breville Duo-Temp 800ESXL Gasket Replacement: step 9, image 1 of 2 Breville Duo-Temp 800ESXL Gasket Replacement: step 9, image 2 of 2

    • Place the gasket and screen back into the espresso machine.

    • Insert the 6 mm Phillips #1 screw back into the middle of the screen and tighten in a clockwise direction.

    • The tightness of the screw should be firm but not difficult to loosen. Do not over tighten the screw.

    Edit

  11. Breville Duo-Temp 800ESXL Gasket Replacement: step 10, image 1 of 2 Breville Duo-Temp 800ESXL Gasket Replacement: step 10, image 2 of 2

    • Set the espresso machine upright.

    • Reattach the water reservoir and drip tray.

    Edit
Conclusion

Your espresso machine is now ready to use. Fill your portafilter with coffee, brew and enjoy your espresso.

Author

with 2 other contributors

Carissa Baker

Member since: 09/20/21

181 Reputation

1 Guide authored

Badges: 2

Team

University of North Texas, Team 1-4, Friess Fall 2021 Member of University of North Texas, Team 1-4, Friess Fall 2021

UNT-FRIESS-F21S1G4

1 Member

1 Guide authored

2 Comments

thanks so much. Do you have a photo of the brew group without the screen on it? mine is so filthy and water was only coming out of one side-Lily

Lily White - Reply

Hi! Water is coming out of those holes on top when I try to make espresso. Does that mean I need to replace the gasket? What do you think the issue is? Thanks!

Haley Shanahan - Reply

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