RGBW Flickering (Faulty?)

[petervanderpol 2]

Hi!

Has anyone seen this before? Its build in so I cant reach it easily... 
So  before I start taking a physical look at it, would be nice if someone has some advice.

It still reacts to all my commands, via associations or via direct command.
I can change color , brightness, i can send the flashy programs.

 

It is an FIbaro RGBW 1

Thanks!
 

 

Edited September 15, 2025 by petervanderpol

[Martin_N 154]

@petervanderpol

Hi.

it almost looks like a problem with the power supply.

I would start with diagnostics here. Typical problem with capacitors, or drivers or transistors in a switched power supply.

Start by replacing the power supply, that will show you whether the module or the power supply is faulty.

 

eM.

[Tim__ 126]

Similar to @Martin_N, my first hypothesis is an under rated power supply. Make sure you have enough amps to power the strip. Also make sure you are using a power supply (eg Meanwell), and not a LED driver.  

 

Let us know what you find!

[Martin_N 154]

@petervanderpol @Tim__

Yes, it is possible that it is a combination of several problems. For such applications, it is advisable to count on a power reserve of about 30%. If the power supply works at the limit, it ages faster and usually dies within 5 years of daily operation.

Well, we still have no response, so we can only speculate and make hypotheses.

Considering that there is a first generation RGBW and it worked properly before, I am betting on the power supply.. even though the module may not be in good condition.

[jakub.jezek 370]

To me, this sounds like 2 things to invetigate. PSU problem or RGBW module has faulty output that do not privede enough frequency. I would connect strips directly to PSU to see if they will have the same issue. This way you could rule out RGBW problem.

 

Btw, this started recently or the issue is there from the start?

[Tim__ 126]

@petervanderpol Did you manage to solve this?  What was the cause?

[petervanderpol 2]

On 10/17/2025 at 5:34 AM, Tim__ said:

@petervanderpol Did you manage to solve this?  What was the cause?

 

Hi!

 

It is solved, I replaced the power supply with an exact model and problem solved. It worked for 5 years, the 5 others still working solidly.

 

Took me some time, I had to take out the complete extractor hood... So wasn't really looking forward to it. Bit a of poor design , but it was done pretty fast.

On 9/22/2025 at 9:44 AM, jakub.jezek said:

To me, this sounds like 2 things to invetigate. PSU problem or RGBW module has faulty output that do not privede enough frequency. I would connect strips directly to PSU to see if they will have the same issue. This way you could rule out RGBW problem.

 

Btw, this started recently or the issue is there from the start?

 

It worked for 5 years flawlessly, all of a sudden it went like this.

[Martin_N 154]

On 12/27/2025 at 2:53 PM, petervanderpol said:

 

It is solved, I replaced the power supply with an exact model and problem solved. It worked for 5 years, the 5 others still working solidly.

As i wrote :

//it almost looks like a problem with the power supply.

//I would start with diagnostics here. Typical problem with capacitors, or drivers or transistors in a switched //power supply.

 

I'm glad you solved the problem.

If only everything had such an easy solution.

Happy holidays..

 

eM.