Replace the group gasket and shower screen: Gaggia Classic Pro

Before you start

Tools

short Phillips screwdriver, 5 mm Allen key, large flat-blade screwdriver, needle-nose pliers, two pointed screws (for a stuck gasket), stiff brush

Supplies

Gaggia group gasket (part GA-NG01/001 (per Whole Latte Love)); Gaggia shower screen (when replacing the screen), optional

Warnings

• Take care not to damage the ridge the shower screen sits in when prying the plate. Source: Whole Latte Love: How to replace the group gasket on Gaggia semi-automatics
• Turn the gripping screws in only far enough to hold; do not go through the gasket. Source: Whole Latte Love: How to replace the group gasket on Gaggia semi-automatics
• Whole Latte Love suggests descaler on the brush for tough deposits; Gaggia allows only its own descaler in this machine, so use nothing else. Source: Gaggia Classic Pro (RI9380) user manual, USA

Steps

1. Switch off, unplug and let the machine cool completely.

   From the manual: “Make sure that the machine is powered down, unplugged, and completely cool”

2. Take off the reservoir, drip tray, drip pan and reservoir cover, and lay the machine on its back.

   From the manual: “lay the entire machine on its back”

3. Undo the shower screen screw with a short Phillips screwdriver and take the screen off.

   From the manual: “Use a short Philips head screwdriver to remove the shower screen.”

4. Remove the two Allen screws holding the shower holding plate with a 5 mm key.

   From the manual: “Remove the two Allen screws with 5mm Allen wrench.”

5. Let the plate drop out, or ease it out gently with a large flat-blade screwdriver.

   From the manual: “use a large flat blade screwdriver to gently pry out the Shower Holding Plate”

6. If the plate is seized, put the tips of open needle-nose pliers in the empty screw holes and twist hard. Optional

   From the manual: “stick the points into the holes where the Allen bolts were”

7. Pull the old gasket out.

   From the manual: “You should now be able to pull out your old group gasket.”

8. If it is hard or stuck, turn two pointed screws partway into it on opposite sides and pull it out with pliers, one side then the other. Optional

   From the manual: “Screw them into the old gasket. Make sure that they are across from each other.”

9. A very old gasket may have to come out piece by piece with needle-nose pliers. Optional

   From the manual: “A gasket can be so old that it will need to be removed in bits and pieces”

10. Scrub the screen, holding plate and group with a stiff brush.

    From the manual: “This is a good opportunity to clean the shower screen and brew group.”

11. Clean the gasket groove and dry it.

    From the manual: “Clean and dry the slot in the machine that the gasket fits into.”

12. Slide the new gasket into the groove.

    From the manual: “Slide a new gasket into place.”

13. Screw the holding plate back in, then the shower screen (a new one if you are replacing it).

    From the manual: “screwing in the Shower Holding Plate and shower Screen”

14. Lock the portafilter in firmly a couple of times to seat everything.

    From the manual: “Lock the portafilter on a couple of times hard”

15. Stand the machine up and refit the drip pan, drip tray and reservoir, then fill and plug in.

    From the manual: “Tip the unit back up and install the drip pan, drip tray and water reservoir.”

Sources

• Whole Latte Love: How to replace the group gasket on Gaggia semi-automatics Retailer
• Whole Latte Love support: Gaggia Classic Pro grouphead cleaning and service (parts list) Retailer
• Gaggia Classic Pro (RI9380) user manual, USA Manual

Researched on 2026-09-23.

Community: the maker’s text, hosted somewhere else, usually by a retailer.

Applies to

• Gaggia Classic Pro