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Dyson Cu-Beam Up 4K (Silver)-
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Cleaning information
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Cleaning instructions
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More help required
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Troubleshooting
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Power issue
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No output from light
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Light not switched on
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Issue resolved
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Check other appliances
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Electrical supply issue
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Issue resolved
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Other appliances working
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Light not accessible
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Light accessible
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No power to luminaire
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Fuse intact, check DALI
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Issue not resolved, please speak to our Customer Support Team
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DALI system in use
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Issue not resolved, please speak to our Customer Support Team
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Light working without DALI
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Fuse has blown
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Issue not resolved, please speak to our Customer Support Team
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Check mains electricity
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Output too bright/dim
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No dimmer - direction of light
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Incorrectly installed
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Installed correctly
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Over 2.5m from floor
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Installed under recommendation
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Installed with dimmer
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AC Mains/Triac installed
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Analogue dimmer installed
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No DALI converter
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DALI converter installed
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Issue not resolved, please speak to our Customer Support Team
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Light working without DALI
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DALI dimmer installed
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Issue not resolved, please speak to our Customer Support Team
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Light working without DALI
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Unsure on dimmer type
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Output will not turn off
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No dimmer installed
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Unsure on dimmer installation
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Output will not dim
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Visible issue
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Wires are too short
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Replacement part required
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Confirm correct length
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Video showing fuse replacement
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Testing the fuse
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Installation information
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Installation video
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Installation guide
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Included in the box
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Useful Information
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Serial number location
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Technical specifications
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Luminaire replacement video
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Most common topics
Please select the appropriate option
Please select the appropriate option
Cleaning instructions
As per the recommendations in the operations guide, use a microfibre cloth or solvent and moisture free compressed air canister to clean the appliance.
Please ensure the appliance is turned off before cleaning.

Please select the appropriate option
Please select the appropriate option
Please select the appropriate symptom.
We're glad the problem's been solved.
Please let us know if there's anything else we can help you with.
Check that other appliances in the room are working, such as other lights, air conditioning, fans/heaters etc.
This is likely to be an issue with the electrical supply and will need to be resolved by an electrician.
We're glad the problem's been solved.
Please let us know if there's anything else we can help you with.
Only check the light if it is safe to do so. If there is any doubt please contact an electrician or maintenance personnel.
This is likely to be an issue with the electrical supply and not related to machine itself.
This issue should be resolved by an electrician.
Check voltage
Please check that the correct voltage is being supplied to the drive box 110 - 240V Max.
Please also check the voltage to the Luminaire (as shown) is 40V
Please only check the light if it is safe to do so, if there is any doubt we advise you to contact an electrician or member of maintenance personnel.

Test the fuse
Turn off the light and remove power supply. Ensure that there is no power to the light before removing the fuse.
Turn the meter on and set it to OHMS.
Put one lead on each end of the fuse and check the display on the meter.
Please note; All electrical installation and repair work should be carried out by a qualified electrician in accordance with current local codes or regulations.
Fuse type - 4 AMP 250v Fuse.
The DALI (Digital Addressable Lighting Interface) is a data protocol and transport mechanism. The common platform of DALI enables equipment from different manufacturers to be connected.
In this instance, we use this as a lighting management control system.
Apologies. We can't help you online.
But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622
Please get in touch.
Our experts are ready to help you.
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
Please disconnect the DALI system. If the light is operational it should power on.
You may need to speak to your DALI engineer to resolve this issue.

Apologies. We can't help you online.
But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622
Please get in touch.
Our experts are ready to help you.
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
As the light is working when the DALI is not connected it is likely to be an issue with the DALI system.
Please contact a DALI engineer to resolve this issue.
Please replace the fuse and retest the light.
Fuse type - 4 AMP 250v Fuse.
Apologies. We can't help you online.
But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622
Please get in touch.
Our experts are ready to help you.
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
Check that other appliances in the room are working, such as other lights, air conditioning, fans/heaters etc.

Projecting up
Light appears from the top of the product.

Projecting down
Light appears from the base of the product.

Please note; If the product has been set-up correctly there should be no/little glare - however some customers may prefer to use a dimmer to reduce the output of the light.
All electrical installations and repair work should be carried out by a qualified electrician in accordance with current local codes or regulations.
This means that the light has been installed in the wrong orientation and the issue can be resolved by reinstalling the light correctly.
All electrical installations and repair work should be carried out by qualified electrician in accordance with current local codes or regulations.
It is recommended that the lights are installed over 2.5m from the floor to prevent glare.

At what height is the product from the floor?
This issue could be resolved by installing a dimmer switch.
Below is information on the different dimmer types available on market.
Analogue dimming, this is usually referred to as 1-10v dimming.
DALI - A lighting management control system.
AC mains/TRIAC
AC/TRIAC dimmers are designed for resistive loads such as incandescent or halogen lights. These phase controlled dimmers are not compatible with LEDs since LEDs do not appear as a resistive load.
Alternatively the issue could be resolved by moving the light to a different location in the room.
We do not advise customers to replace the wires as this will invalidate the warranty. The wires used are to an exact Dyson specification.
It is recommended that the product is installed over 2.5m from the floor to prevent glare.
Please note; All electrical installation and repair work should be carried out by a qualified electrician in accordance with current local codes or regulations.
Please refer to the installation guide.
Dimmer types
Analogue dimming - this is usually referred to as 1-10v dimming.
DALI - A lighting management control system.
AC mains/TRIAC - AC/TRIAC dimmers are designed for resistive loads such as incandescent or halogen lights. These phase controlled dimmers are not compatible with LEDs since LEDs do not appear as a resistive load.
What kind of dimmer is the product installed with?
The light is not compatible with AC/Mains Triac, it will need to be installed with a compatible dimmer in order to dim.
Compatible dimmer - OSram DALI MCU
Please note: a converter is required if an analogue dimmer is being used.
The product is not compatible with analogue controls, it will need to be installed with a compatible dimmer, or an analogue to DALI converter, in order to properly function.
Compatible dimmer - OSram DALI MCU
Please disconnect the DALI system. If the light is operational it should power on.
You may need to speak to your DALI engineer to resolve this issue.

Apologies. We can't help you online.
But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622
Please get in touch.
Our experts are ready to help you.
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
As the light is working when the DALI is not connected it is likely to be an issue with the DALI system.
Please contact a DALI engineer to resolve this issue.
Please disconnect the DALI system. If the light is operational it should power on.
You may need to speak to your DALI engineer to resolve this issue.

Apologies. We can't help you online.
But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622
Please get in touch.
Our experts are ready to help you.
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
As the light is working when the DALI is not connected it is likely to be an issue with the DALI system.
Please contact a DALI engineer to resolve this issue.
Please consult an electrician as to whether the light has been installed with a compatible dimmer.
Dimmer types
Analogue dimming - this is usually referred to as 1-10v dimming.
DALI - A lighting management control system.
AC mains/TRIAC - AC/TRIAC dimmers are designed for resistive loads such as incandescent or halogen lights. These phase controlled dimmers are not compatible with LEDs since LEDs do not appear as a resistive load.
The product needs to be installed with a compatible dimmer in order to adjust the brightness.
Compatible dimmer - OSram DALI MCU
Please consult an electrician as to whether the light has been installed with a compatible dimmer.
Dimmer types
Analogue dimming - this is usually referred to as 1-10v dimming.
DALI - A lighting management control system.
AC mains/TRIAC - AC/TRIAC dimmers are designed for resistive loads such as incandescent or halogen lights. These phase controlled dimmers are not compatible with LEDs since LEDs do not appear as a resistive load.
Please select the appropriate symptom.
Your Dyson Cu-Beam light will have been provided with 4m of cable.

We do not advise customers to replace the wires as this will invalidate the warranty. The wires used are to an exact Dyson specification.
Apologies. We can't help you online.
But our Customer Support Team will be able to solve your problem. Call us on 1-877-397-6622
Please get in touch.
Our experts are ready to help you.
UK based helpline open
8:00am- 8:00pm Monday to Friday
8:00am- 6:00pm Saturday and Sunday
We do not advise customers to replace the wires as this will invalidate the warranty. The wires used are to an exact Dyson specification.
The Dyson Cu-Beam lights are only approved for use with the supplied cable. This cable is to an exact Dyson specification. Replacing the cables will invalidate the guarantee.
Please note; All electrical installation and repair work should be carried out by a qualified electrician in accordance with current local codes or regulations.
Replacing the fuse
Test the fuse
How to test a fuse:
Turn off the light and remove power supply. Ensure that there is no power to the light before removing the fuse.
Turn the meter on and set it to OHMS.
Put one lead on each end of the fuse and check the display on the meter.
Please note; All electrical installation and repair work should be carried out by a qualified electrician in accordance with current local codes or regulations.
Fuse type - 4 AMP 250v Fuse.
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Installation guide
The installation guide can be found on the above link.
Included in the box with your Cu-Beam uplight:
Template.

Ceiling box.

Spring Hangar x2.

Ceiling box fascia.

Installation bracket x2.

Screw pozi drive x4.

Adjustable Hangar x2.

Uplight Luminaire.

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Ensure the electricity is switched off before opening the driver box.
Serial number location
The serial numbers can be found in the following 3 locations:
On the box (packaging).
On the underside of the driver box.
Inside the driver box, as indicated in the attached video.
The technical specification can be found on the above link.
Further help
Dyson Cu-Beam Up 4K (Silver)