If your Breville Bambino Plus is failing to build pressure during extraction, it can result in weak or no espresso. This issue typically stems from blockages, scale buildup, or pressure valve problems. In this guide, you’ll find clear, step-by-step instructions to diagnose and fix the pressure issue safely and effectively.
Before starting, ensure your machine is unplugged and cooled down to avoid any accidents. Regular maintenance and cleaning can prevent pressure problems and prolong your machine’s lifespan.
Key Takeaways
| Check for blockages | Clogged filters or shower screens can cause pressure issues. |
| Clean regularly | Scale buildup reduces pressure and affects performance. |
| Inspect the pressure valve | A faulty pressure valve can prevent proper pressure build-up. |
| Use proper water quality | Impurities and scale from tap water can cause blockages. |

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Step 1: Turn Off and Unplug the Machine
Always disconnect your Breville Bambino Plus from the power source and allow it to cool completely before performing any troubleshooting steps.

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Step 2: Remove and Clean the Portafilter and Shower Screen
- Detach the portafilter from the group head.
- Remove the shower screen and rinse thoroughly under warm water.
- Use a soft brush to clean any coffee grounds or residue that might be clogging the screen.
Step 3: Check for Blockages in the Water Path
- Remove the water reservoir and inspect for debris or scale buildup.
- Use a soft cloth or brush to clean the water inlet and outlet areas.
- Ensure the water flow is unobstructed.
Step 4: Descale the Machine
If you notice mineral buildup, descale your Breville Bambino Plus using a descaling solution or tablets designed for espresso machines. Follow manufacturer instructions carefully, especially if using cleaning tablets.
Step 5: Inspect and Test the Pressure Valve
Locate the pressure release valve and ensure it’s not stuck or damaged. If you suspect a fault, consider consulting a professional or contacting Breville support for repair options.
The Products in This Guide

Breville Bambino Plus
- ✔ Weight: 10.9 pounds
- ✔ Water Tank Capacity: 64 ounces
- ✔ Power: 1600W

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Pack Size: 8 tablets
- ✔ Ingredient Safety: Food-grade
- ✔ Compatibility: All Breville models
Breville Bambino Plus

The Breville Bambino Plus combines advanced features like dose control grinding and optimal water pressure with a sleek, compact design. Regular cleaning and maintenance are key to keeping it functioning properly.
Pros:
- Fast heat-up with ThermoJet system
- Consistent extraction quality
- Easy to clean with compatible tablets
- Compact footprint perfect for small spaces
Cons:
- Requires regular descaling
- Pressure issues may need professional repair
- Limited water capacity for frequent use
Best for: Home baristas seeking professional-quality espresso
Not ideal for: Users who prefer a machine with advanced pressure gauge or larger water reservoir
Bottom line: A compact, high-performance espresso machine with reliable features for home use.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville’s official cleaning tablets ensures thorough cleaning and prolongs the lifespan of your espresso machine. Regular use helps prevent pressure issues caused by oil and residue buildup.
Pros:
- Precisely formulated for Breville machines
- Easy to use and dissolve
- Removes coffee oils and residues effectively
- Extends machine longevity
Cons:
- Requires consistent use for best results
- Cost adds up over time
- Cannot replace descaling if mineral buildup is severe
Best for: Maintaining optimal performance and preventing pressure issues
Not ideal for: Users seeking a quick fix without regular maintenance
Bottom line: A trusted cleaning solution to keep your Breville espresso machine in top condition.
Frequently Asked Questions
Why is my Breville Bambino Plus not building pressure?
Common causes include clogged shower screens, mineral scale buildup, or a faulty pressure valve. Regular cleaning and descaling can often resolve these issues.
How often should I descale my espresso machine?
It’s recommended to descale every 2-3 months, especially if you use tap water regularly, to prevent mineral buildup and maintain optimal pressure.
Can I fix pressure issues myself?
Yes, many pressure problems can be addressed by cleaning filters, shower screens, and descaling. However, if the issue persists, professional repair may be necessary.
What products are recommended for cleaning?
Breville’s official cleaning tablets are highly effective, and descaling solutions can be used as needed to remove mineral deposits.
Ensuring Your Espresso Machine Performs at Its Best
By following these troubleshooting steps, you can often resolve pressure issues with your Breville Bambino Plus and enjoy consistently excellent espresso. Regular maintenance, including cleaning and descaling, will keep your machine functioning smoothly and extend its lifespan.
If problems persist after cleaning, consider consulting a professional or reaching out to Breville support for further assistance. Proper care ensures you get the most out of your investment in quality coffee brewing.
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