If your Breville Bambino Plus isn’t heating properly, it can be frustrating and disrupt your coffee routine. Many common issues stem from simple problems like mineral buildup, faulty sensors, or power supply issues. This guide provides clear, practical steps to diagnose and fix your non-heating Breville espresso machine safely and effectively, ensuring you can enjoy your favorite coffee at home without hassle.
Before starting, ensure your machine is unplugged and cooled down to prevent any risk of burns or electrical shock. We’ll walk through a systematic troubleshooting process, covering everything from checking power supply to cleaning internal components. Let’s get your espresso machine back to optimal performance!
Key Takeaways
| Basic Checks | Ensure the machine is plugged in and power outlet is working. |
| Sensor and ThermoJet | Faulty temperature sensors or heating system issues cause heating failures. |
| Cleaning & Maintenance | Mineral buildup can impair heating; regular descaling is essential. |
| Component Inspection | Inspect and replace faulty parts like the heating element or thermocoil. |
| Professional Help | When in doubt, contact certified repair services for complex issues. |

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Step 1: Verify Power Supply and Basic Settings
- Ensure the machine is properly plugged into a functioning power outlet. Test the outlet with another device if necessary.
- Check that the power switch is turned on. Sometimes a simple toggle can resolve the issue.
- Confirm that the machine’s power cord and plug are in good condition, without frays or damage.
- Double-check that the machine’s water reservoir is filled correctly and seated properly; some models won’t heat if the water isn’t at the correct level.

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Step 2: Inspect the ThermoJet and Temperature Sensors
The Breville Bambino Plus uses a ThermoJet heating system, which is crucial for quick and precise heating. If it isn’t functioning properly, the machine may not heat.
- Unplug the machine and open the access panel as per the user manual.
- Locate the ThermoJet assembly and temperature sensors. Refer to the user manual for exact locations.
- Check for visible damage, corrosion, or loose connections. If you notice corrosion or broken parts, they may need replacement.
- Using a multimeter, test the sensors for proper resistance (refer to the manual’s specifications). Faulty sensors should be replaced.
Step 3: Clean and Descale the Machine
Mineral buildup and coffee oils can insulate heating elements or interfere with sensors, causing heating issues. Regular cleaning is vital.
- Descale the machine using a recommended descaling solution or tablets, such as the Breville BEC250 Cleaning Tablets.
- Follow the descaling process outlined in your user manual, ensuring thorough rinsing afterward.
- Remove and clean the shower screen, filter basket, and water reservoir to prevent blockages.
- Perform regular maintenance every 2-3 months or more frequently if you have hard water.
Step 4: Test and Replace Faulty Components
If cleaning and basic checks don’t resolve the heating problem, inspect the internal components.
- Unplug the machine and carefully access the internal heating element and thermocoil. Consult your manual for safe disassembly.
- Check for visible damage, corrosion, or broken parts.
- If the heating element or thermocoil shows signs of failure, replacing these parts may be necessary. Consider professional repair if unsure.
- Use genuine replacement parts designed for your model to ensure compatibility and safety.
Step 5: Seek Professional Repair or Contact Support
If you’ve completed all troubleshooting steps and your Breville Bambino Plus still refuses to heat, it’s best to consult a professional.
- Contact Breville customer support or authorized service centers for assistance.
- Provide details about your model, the issue, and steps you’ve already taken.
- Professional repair can address complex electrical or component failures safely and effectively.
The Products in This Guide

Breville Bambino Plus
- ✔ Voltage: 120V
- ✔ Power: 1600W
- ✔ Warranty: 1 Year

Breville BEC250 Espresso Machine Cleaning Tablets
- ✔ Size: 8 tablets
- ✔ Brand: Breville
- ✔ Safety: Food safe
Breville Bambino Plus

The Breville Bambino Plus is a highly-rated espresso machine known for its fast heat-up time and professional-quality results. If it’s not heating, following these troubleshooting steps can help restore its performance safely.
Pros:
- Fast ThermoJet heating system
- Compact design fits small spaces
- Consistent temperature control
- Easy to clean and maintain
Cons:
- May require professional repair for complex issues
- Sensor or heating element replacements can be costly
- Requires regular descaling for optimal performance
Best for: Home baristas seeking quick, cafe-quality espresso
Not ideal for: If experiencing persistent electrical or internal component failures
Bottom line: Regular maintenance and troubleshooting can keep your Breville Bambino Plus heating reliably.
Breville BEC250 Espresso Machine Cleaning Tablets

Using Breville BEC250 Cleaning Tablets regularly can prevent buildup that impairs heating and performance. It’s a simple, safe way to extend your machine’s lifespan.
Pros:
- Designed specifically for Breville machines
- Remove coffee oils and residues
- Non-corrosive and food-safe
- Easy to use
Cons:
- Requires regular use
- Cost adds up over time
- Limited to cleaning, not repairs
Best for: Maintaining optimal performance and clean internal components
Not ideal for: Fixing electrical or heating component failures
Bottom line: Regular cleaning with these tablets helps maintain consistent heating performance.
Frequently Asked Questions
My Breville Bambino Plus is not heating at all. What should I check first?
Start by verifying the power supply, including the outlet and power cord. Ensure the machine is plugged in, turned on, and the water reservoir is correctly seated and filled.
Could mineral buildup cause heating problems?
Yes, mineral deposits from hard water can insulate heating elements and sensors, impairing their function. Regular descaling with approved tablets or solutions is recommended.
How do I check if the thermostat or sensors are faulty?
Unplug the machine and access the internal components. Using a multimeter, test the sensors for proper resistance according to the manual. Visible damage or corrosion indicates a need for replacement.
Can I repair internal parts myself?
If you have experience with small appliances and proper tools, some parts like sensors or the heating element can be replaced. Otherwise, professional repair is recommended for safety and warranty reasons.
How often should I descale my espresso machine?
It’s best to descale every 2-3 months, especially if you have hard water. Regular cleaning helps prevent mineral buildup that can affect heating and overall performance.
Keeping Your Breville Bambino Plus Heating Efficiently
Regular maintenance and systematic troubleshooting can resolve most heating issues with your Breville Bambino Plus. From verifying power connections to cleaning and component inspection, following these steps helps ensure your espresso machine stays in top shape. When in doubt, professional servicing can safely address more complex problems, extending the life of your investment and ensuring perfect espresso every time.
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