eBay

Internal seals set to suit Breville Dual Boiler machines - BES900 & BES920. This will also cover the older BES980 Oracle (not touch screen), though there may be some seals left over.

I’ve had many requests to put together a service kit, and I have listened to your feedback! In this set, I’ve included solutions to the main hot-side culprits of leaks in these machines. This is a great kit for preventative maintenance and servicing.

If you have had a steam leak and notice your machine is overheating, particularly if the leak has been there a while, chances are very high that your triac board has been affected. Not a worry though! We sell service kits for those here: https://www.ebay.com.au/itm/235558256179

OR if you'd like to treat your machine to a full service which includes a bunch of extras and a triac kit, we have this kit here: https://www.ebay.com.au/itm/235634803968

Set includes:

Boiler O-ring set:

5 x large O-rings for the coffee and steam probes and 12 x small O-rings for the boiler hose connections and NTCs (this also covers the O-rings at the back of the group head beneath the solenoid).
4 x clear O-rings for the steam boiler probe shafts. Note: To install these, you'll need to remove the probe, carefully remove the E-clip at the top, slide the white sheath up and remove the old seal before carefully sliding the new Oring up from the bottom of the probe and into place. You'll may need to nudge the O-ring all around underneath the white sheath with something blunt. Once it's under there, you can slide the sheath back down, hold it in place and replace the E-clip to lock it all into place.
3 x probe shaft retainer clips

Drain valve O-rings:

2 x small O-rings for the tips of the drain valves that seal the openings. These are where the leaks usually come from. I have never seen the larger O-ring on these valves die…yet (the green one in the pic) so I haven’t included those
4 x large O-rings for the boiler drain fittings and connections to the drain valves (for BES920 & BES980).

Solenoid seal set:

2 x PTFE solenoid gaskets
2 x brass vent pins

Refer to the last photo in this listing for fitting instructions.

Steam valve seal set:

2 x PTFE internal ball valve seals. Note: After installation the lever will feel tough. Don’t worry, this is normal. It will soften nicely after you use it and the seals form around the ball valve.
3 x small O-rings for the connecting elbow and steam arm seals
1 x HNBR O-ring for the valve actuator

Steam boiler anti-vac seals:

The anti-vac valve on the steam boiler is very often overlooked and we've seen MANY of these machines with leaks here. The seal around the plunger goes brittle over time and this allows pressure to vent from your steam boiler, which makes it have to kick the element on again to top it up more frequently. If the leak gets bad enough, it can lead to much more scale build-up in your steam boiler due to it heating more often than it should. More scale = more chance of compromising the boiler element which = a boiler replacement which is very expensive! If you already have the machine open, you might as well use an 18mm spanner/socket to remove the anti-vac, give it a quick bath in descale solution and replace the seals.

1 x silicone seal for the anti-vac plunger
1 x silicone seal for the anti-vac housing nut

Do you need this kit with but with a group seal and silicone grease? We've got you: https://www.ebay.com.au/itm/235568031008

This listing is for the seals only. Any parts shown are only for reference.

Check out our store for an extra 10% off when you purchase 3 different items or more!

**A quick disclaimer**

I love free things, we all do, and that's why I offer free postage on some of my listings. I make it a habit to send your orders through the post office directly, rather than dropping it into a Post Box where they can sometimes get stuck in the mail bag. Please understand however that if you choose the free shipping option, there is no tracking number. If you opt for free postage and your order doesn't arrive, I can't be held liable. It's rare, but it can happen.

I take photos of all orders before I ship them out and am happy to send you yours as proof.

To avoid this, I recommend using either the standard trackable mail option or even the Express post option if you need your order in a hurry. They might not be free, but they're trackable.

Thanks for your support and understanding,

- Maz @ Cockabrew