Breville Bambino Plus Auto Steam Not Working? 5 Fixes

The Bambino Plus Tells You When the Wand Is Blocked

The Breville Bambino Plus (BES500) textures milk automatically. The jug sits on a milk temperature sensor in the drip tray and steaming stops at the temperature you chose. When auto steam stops working, the book's answer is nearly always the steam wand: it wasn't lowered to purge, its tip is blocked, or the machine needs water or a descale.

The machine flags most of this with its two milk lights, MILK TEMP and MILK FOAM. Learn the three patterns and you'll know which fix you need.

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Try This First

• Lower the steam wand all the way. It purges itself when lowered.
• Fill the tank and push it down until it locks.
• Use the supplied stainless jug, filled between MIN and MAX, sitting on the sensor.
• Make sure the milk covers the wand tip.

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What Are the Milk Lights Saying?

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Fix 1: Lower the Wand So It Purges (Works About 30% of the Time)

The book is direct about it: "After texturing milk, the steam wand must be returned to the lowered position and allowed to automatically purge. Not doing so, could result in the steam wand blocking."

1. After texturing, lift the wand to take the jug off, wipe it, then lower it fully. It purges automatically.
2. Lights stepping downwards? That's the lower steam wand alert. Lower the wand.
3. To purge by hand: with the wand lowered, hold STEAM for 5 seconds.
4. Before texturing, the book also suggests a short purge: press STEAM to start and again to stop.

Time: 1 minute
Cost: Free
Success Rate: About 30%
Difficulty: Easy

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Fix 2: Clear a Blocked Steam Tip (Works About 30% of the Time)

If the machine detects a blocked wand mid-texturing, "it will immediately stop operating and the STEAM button light will be off. Both the MILK TEMP and MILK FOAM lights will fully illuminate and flash." They keep flashing until the wand is purged or its tip is cleaned.

1. Manually purge first: wand lowered, hold STEAM for 5 seconds.
2. Still blocked? Find the steam tip cleaning tool under the water tank, at the back of the machine.
3. Unscrew the steam tip with the tool and use it to clear the holes.
4. Rinse the tip, dry it, screw it back on, and purge again.

Wipe the wand with a damp cloth after every use. Dried milk is what blocks the holes.

Time: 10 minutes
Cost: Free
Success Rate: About 30%
Difficulty: Easy

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Fix 3: Clear a Steam Function Error (Works About 15% of the Time)

The troubleshooting row "Water doesn't come through (the machine makes loud noise). Froth and temperature lights flashes together" has two causes: the tank is empty or below MIN, or a steam function error with the tank possibly empty.

1. Fill the tank and push it down to lock.
2. Hold STEAM for 3 seconds to purge the system.
3. Try texturing again.

Time: 2 minutes
Cost: Free
Success Rate: About 15%
Difficulty: Easy

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Fix 4: Set Up the Jug Correctly (Works About 15% of the Time)

Automatic texturing needs the jug on the sensor. The book's "Milk too hot" row: "Ensure milk jug is correctly positioned on sensor. Adjust milk temperature setting."

1. Fill the supplied stainless jug between MIN and MAX with fresh cold milk.
2. Lift the wand, put it in the jug, then lower the wand fully.
3. The jug must rest on the milk temperature sensor on the drip tray, with milk covering the wand tip.
4. Choose MILK TEMP and MILK FOAM, then press STEAM. It flashes while texturing and stops at the set temperature.

Different milks texture differently. The book says you may need to adjust the foam level. Don't use other containers: the book says other jugs "may lead to dangerous conditions".

Time: 2 minutes
Cost: Free
Success Rate: About 15%
Difficulty: Easy

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Fix 5: Descale (Works About 10% of the Time)

"Machine needs to be decalcified" is a cause in the No steam row. The descale alert is 1 CUP + STEAM and 2 CUP flashing alternately for 15 seconds. Pressing a button cancels the alert but doesn't descale.

1. With the machine off, hold 1 CUP + STEAM for 5 seconds to enter descale mode.
2. Put a 2 L (68 oz) container under the portafilter and the steam wand.
3. Press 1 CUP or STEAM to start, and follow the book's rinse steps.

Our Bambino Plus descaling guide has every step.

Time: One descale cycle plus the rinse
Cost: Breville descaler
Success Rate: About 10%
Difficulty: Easy

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When DIY Won't Work

If the machine "is on but ceases to operate", the book blames the safety thermal cut-out. Press 1 CUP + STEAM for 0.5 seconds to switch it off, unplug it, and let it cool for 30-60 minutes. If the problem persists, call Breville Support.

Call Breville too if the blocked-wand lights won't clear after cleaning the tip.

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Keep Auto Steam Working

• Lower the wand after every jug so it purges.
• Wipe the wand with a damp cloth straight away.
• Keep the tank above MIN.
• Descale when the alert flashes.
• Mind the wand after switching off: "Pressurized steam can still be released, even after the machine has been switched off."

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FAQ

Can I steam manually on the Bambino Plus?

Yes. The book has a manual mode: lift the wand into the jug with the tip about 3/4 inch (1-2 cm) below the surface and press STEAM. "Auto milk texturing and auto shut-off are disabled during manual milk texturing," so press STEAM again when you're done.

Why do the milk lights flash in a downward pattern?

The steam wand is still raised. Lower it fully and it purges automatically. The book warns that skipping this purge can block the wand.

Why is my Bambino Plus milk too hot?

The jug isn't sitting properly on the sensor, or the temperature setting is too high. Place the jug on the sensor and pick a lower MILK TEMP setting.

Can I get hot water from the steam wand?

Yes. In ready mode, lift the wand over the drip tray and press 1 CUP + MILK FOAM. Press 1 CUP to stop.

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Related Breville Guides

• Breville Bambino Plus Error Lights: every light pattern
• Breville Bambino Plus Descaling Guide: descale mode step by step
• Breville Steam Wand Not Working?: other Breville models

Sources: Breville the Bambino Plus BES500 Instruction Book (USCM X25).