What are the most common Breville Barista Pro BES878 problems?

The most common Breville Barista Pro BES878 issues are steam wand blockage, scale buildup / limescale clogging, group head gasket degradation. These are based on real repair data and typically occur at different points in the device's lifespan.

How long does a Breville Barista Pro BES878 typically last?

A Breville Barista Pro BES878 typically lasts about 10 years with normal use. The manufacturer warranty covers the first 2 years.

When does steam wand blockage typically happen on a Breville Barista Pro BES878?

Steam Wand Blockage typically occurs around 1 years of use. Estimated repair cost is approximately $20.

Breville Barista Pro BES878: Common Problems by Age

When your breville barista pro bes878 is most likely to develop issues, based on community repair data and manufacturer patterns.

Released: 2021Typical lifespan: 10 yearsRepairability: 7/107 known failure types

Last updated: May 3, 2026

Overall Risk by Age

0y1y2y3y4y5y6y7y8y9y10y11y12y13y

LowModerateHigh

Key Milestones

🛡

Warranty ends

2 years

⏳

Typical lifespan

10 years

Known Failure Points

Issues spanning early life through late-life degradation, sorted by when they typically appear.

Steam Wand Blockage

The steam wand clogs with dried milk protein deposits and internal scale. Milk sucked back into the steam tip during frothing hardens inside the wand and the steam valve. A blocked wand produces weak or no steam, making it impossible to froth milk. The blockage can usually be cleared by soaking the tip in hot water with espresso machine cleaner, or by using a pin to clear the steam holes. Severe internal blockages require wand removal.

moderate

Probability over timePeak: 35%

0 monthsPeak: 1 year2.8 years

Affects: 35% of devices

Repair cost: ~$20

DIY: easy

Warning signs:

Steam pressure is weaker than when new
Steam comes from only some holes in the tip
Milk residue visible on or inside the steam tip
Sputtering instead of consistent steam flow

Scale Buildup / Limescale Clogging

Mineral deposits from water accumulate inside the boiler, thermoblock, water lines, and check valves. Scale reduces water flow, lowers brew temperature, and eventually blocks the system entirely. This is the #1 most common coffee maker issue and the most preventable. Early-stage scale responds well to descaling solutions (citric acid or commercial descaler). Severe scale in espresso machine boilers may require professional disassembly.

major

Probability over timePeak: 60%

0 monthsPeak: 1.5 years4 years

Affects: 60% of devices

Repair cost: ~$15

DIY: easy

Warning signs:

Brew cycle takes noticeably longer than when new
Coffee temperature is lower than expected
Reduced water flow or sputtering during brew
Machine makes louder pumping sounds

Group Head Gasket Degradation

The silicone or rubber gasket that seals the portafilter to the group head hardens and cracks from repeated heat cycling. A degraded gasket allows water to leak around the portafilter during extraction, reducing brew pressure and causing a mess. Gasket replacement is the most common espresso machine maintenance task — gaskets are inexpensive ($5-10) and replacement is straightforward.

moderate

Probability over timePeak: 40%

0 monthsPeak: 2 years4 years

Affects: 40% of devices

Repair cost: ~$15

DIY: easy

Warning signs:

Water leaking around the portafilter during brewing
Portafilter requires more force to lock in than when new
Coffee grounds appear on top of the group head
Reduced brew pressure — espresso runs too fast

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