Let's get your machine working.
Dyson Cu-Beam Duo 4000K light (Silver)Let's get your machine working.
Dyson Cu-Beam Duo 4000K light (Silver)-
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Troubleshooting
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Power issue
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Will not dim
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Dimmer installed
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Analogue dimmer
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DALI converter used
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Still working disconnected
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-
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Visible issue
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Will not dim
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No dimmer installed
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Issue resolved
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Dimmer installed
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DALI dimmer
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Still working disconnected
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Issue not resolved, please speak to our Customer Support Team
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AC Mains/Triac
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More help required
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Cleaning information
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Installation guide
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Technical specifications
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Included in the box
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Analogue dimmer
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No converter; install one
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DALI converter used
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Still working disconnected
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Issue not resolved, please speak to our Customer Support Team
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Unsure on dimmer
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The light is too bright/dim
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No dimmer
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Down; height
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1-1.5m over table
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Check trim blades
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Incorrect, refit
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Issue not resolved, please speak to our Customer Support Team
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Fit OK, table issue
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No trim blades
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Fit blades
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Issue resolved
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Issue not resolved, please speak to our Customer Support Team
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Issue not resolved, please speak to our Customer Support Team
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Issue not resolved, please speak to our Customer Support Team
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Not over table, reposition
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Up; product height
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Less than 2.5m from floor
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More than 2.5m from floor, reposition light
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Unsure on dimmer
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Dimmer installed
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Unsure on dimmer
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DALI dimmer
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Still working disconnected
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Issue not resolved, please speak to our Customer Support Team
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Analogue dimmer
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DALI converter used
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Still working disconnected
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Issue not resolved, please speak to our Customer Support Team
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No converter; install one
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AC Mains/Triac
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Wire is too short
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Confirm correct length
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Issue not resolved, please speak to our Customer Support Team
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No converter; install one
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AC Mains/Triac
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Unsure on dimmer
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DALI dimmer
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Still working disconnected
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Issue not resolved, please speak to our Customer Support Team
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Unsure on dimmer
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No dimmer installed
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Won't split
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Not DALI
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0-10V/1-10V/PWM
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Split manually
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Manual OK, system issue
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Issue not resolved, please speak to our Customer Support Team
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Analogue; incompatible
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DALI, manual split
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Issue not resolved, please speak to our Customer Support Team
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Unsure on dimmer
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Won't turn off
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No dimmer, check electrics
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Access light
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Check Luminaire
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Issue not resolved, please speak to our Customer Support Team
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Check fuse
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Issue not resolved, please speak to our Customer Support Team
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Reset fuse
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No access; call electrician
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Other lights off; electrics
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Dimmer installed
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Analogue dimmer
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DALI converter used
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Still working disconnected
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No converter; install one
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DALI dimmer
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Issue not resolved, please speak to our Customer Support Team
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Still working disconnected
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AC Mains/Triac
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Unsure on dimmer
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Light won't turn on
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No dimmer, check electrics
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Other lights off; electrics
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Access light
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Check Luminaire
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Check fuse
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Reset fuse
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No access; call electrician
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Unsure on dimmer
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Dimmer installed
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AC Mains/Triac
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Analogue dimmer
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No converter; install one
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DALI converter used
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Issue not resolved, please speak to our Customer Support Team
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Still working disconnected
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DALI dimmer
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Still working disconnected
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Unsure on dimmer
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Popular queries
We're glad the problem's been solved.
Please let us know if there's anything else we can help you with.
The Dyson guarantee
'How to ' videos and tips
To help you get the most from your machine. Quick and easy.
Exclusive owner benefits
Priority access to previews of new Dyson technology, events and offers.
Expert advice. 7 days a week.
Freephone and live chat. The right advice for your machine, from real Dyson people.
Hassle-free repairs and replacement
Free replacement parts or repairs during your guarantee period. And if we can’t repair it, we’ll replace it.
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We're glad the problem's been solved.
Please let us know if there's anything else we can help you with.
The Dyson guarantee
'How to ' videos and tips
To help you get the most from your machine. Quick and easy.
Exclusive owner benefits
Priority access to previews of new Dyson technology, events and offers.
Expert advice. 7 days a week.
Freephone and live chat. The right advice for your machine, from real Dyson people.
Hassle-free repairs and replacement
Free replacement parts or repairs during your guarantee period. And if we can’t repair it, we’ll replace it.
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
But our Customer Support Team will be able to solve your problem.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We need a little more information to help us solve your issue.
Please contact our customer service team on 0800 298 0298, or directly on Live Chat through our Digital Assistant by clicking the purple icon at the bottom of the page. You can start a conversation with an Expert by clicking the agent icon at the bottom left of the chat window.
Please get in touch.
Our experts are ready to help you.
Call us free on
0800-298-0298
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday