Breville Barista Express problems, fixes & maintenance
Espresso machine · BES870 · Updated June 17, 2026
The Breville Barista Express (sold as the Sage Barista Express in the UK and Australia) is the machine that put grind-to-cup espresso in millions of kitchens. It pairs a 54 mm portafilter with an integrated conical burr grinder and a single thermocoil. Because almost everything that goes wrong with it lives in the grind, the dose, the basket or a clogged screen, the vast majority of faults are owner-fixable in minutes.
Common problems & fixes
The faults owners hit most with the Barista Express. Linked guides are live; the rest are publishing soon.
No pressure / weak shots
Hissing but barely dripping? Read the pressure gauge right, then work through the 9 real causes of weak shots on a Breville Barista Express — most are a 5-minute fix.
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Not pumping water
The pump whirs but little or no water comes out of your Barista Express. Here's how to clear the airlock that causes it 9 times out of 10 — plus the other causes to check.
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Grinder not grinding
Grinder motor runs but no coffee reaches the portafilter — or it won't run at all. Here's how to clear the chute, unjam the burrs and fix a Barista Express grinder.
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Error lights / codes
What every light on your Barista Express means — the CLEAN ME light, all-buttons-flashing on startup, rapid flashing and resets — and exactly what to do about each.
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Steam wand / milk frothing
No steam, weak steam, or milk that won't froth on your Barista Express? The fix is usually a blocked steam tip. Here's how to clear it and get proper microfoam back.
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Won't turn on
Dead Barista Express with no lights? Before you assume it's done, work through the outlet, the power button and the overheat cut-out that revives most 'dead' machines.
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Not heating / cold coffee
Cold or lukewarm espresso from your Barista Express? Most of the time it's a missing warm-up routine or scale on the heater — here's how to get properly hot shots back.
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Leaking water
Water under, behind or around your Barista Express? Trace the leak to its source — tank, group gasket, drip tray or an internal seal — with this step-by-step guide.
Read the fix →Maintenance schedule
Stay ahead of the faults above — most Barista Express problems are really missed maintenance.
| Task | How often |
|---|---|
| Backflush with cleaning tablet | ~200 shots (CLEAN ME light) |
| Descale | 2–3 months (hard water: monthly) |
| Soak baskets & portafilter | Monthly |
| Replace water filter | ~3 months |
Specifications
| Type | Semi-automatic, single thermocoil |
|---|---|
| Portafilter | 54 mm |
| Grinder | Integrated conical burr |
| Water tank | 2 L, removable |
| Baskets | Single & dual-wall (1 & 2 cup) |
Get the 1-page troubleshooting flowchart
A free printable that walks any espresso fault down to its cause. Stick it on the fridge for the next time the machine acts up.
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