Fixing an EB832 with non-functional outlets but does have functional indicator lights

[Radman73]

I bought some [HASH=67533]#4x1[/HASH]-3/4" machine screws. Hardware store didn't have any #3's that were long enough. All back together and working just in time for Ian. Yay!

 

[GillMeister]

Here are some images of the boards. The top one is new and the bottom is the failed one. The second image is the package.

Before I get started, is this the correct power supply?

 

[GillMeister]

One more question. Can a failed psu be repaired just by replacing the caps?

 

[GillMeister]

I have a somewhat complicated installation utilizing 6 Energybars. Last night ,with the briefest flicker of the lights, I lost my 9th EB832 in 5 years…

This thread has been a blessing!
View attachment 2841672

Glad to see Neptune Systems has finally stepped up and replaced the PSU. Does anyone know if the underlying circuit board was changed? Are the Meanwell supplies a direct replacement for the older boards.

Thanks again @MadeForThat For starting this thread!

I have 3 EB832's. I'm in the process of fixing/upgrading them and I found that one of them did have a Meanwell PSU. I don't know if the board was revised to handle it and I doubt you'll find Neptune will clear this up for us.

 

[GillMeister]

PMing me and sending it in for a repair is still an option:

Mail-in Repair – FixReef

www.fixreef.com

When I plug it in, nothing happens. No lights, no fan, nothing. I'm going to try another PSU.

View attachment 2847602 View attachment 2847606

 

[Reefer Reboot]

One more question. Can a failed psu be repaired just by replacing the caps?

Yes, if the only thing wrong with the psu is the caps, they can be replaced.

I have 3 EB832's. I'm in the process of fixing/upgrading them and I found that one of them did have a Meanwell PSU. I don't know if the board was revised to handle it and I doubt you'll find Neptune will clear this up for us.

Look at post #1. The psu is even with the top of the board and a bit away from the right side.
Now look at post #79. You can see that the new psu is even with the right side of the board but down a bit from the top.
You can also see that the white marker lines on the board have been shifted.

 

[areefer01]

I was happy to see that the replacement EB832 (MNF 12/2021) has a Meanwell PSU, Part# IRM-05-12. The Meanwell has a lower output rating than the Noyito (.42A vs .5A), but I assume no-name PSU ratings are inflated and that the Meanwell will perform much better over time.

I might apply a conformal coating to the back of the 24v PSU as well as the cooling fan PCB. Between the Meanwell PSU and conformal coating, I will have a bullet-proof EB832!

View attachment 2839892

I may have missed it (apologies) but did you have to modify anything to get the new MW supply to work? Or is it a direct swap?

Curious as I'm thinking I may upgrade two of my older ones with the new MW kit. I did a search but the images did not show the bottom only the top so not sure.

 

[TheHarold]

I may have missed it (apologies) but did you have to modify anything to get the new MW supply to work? Or is it a direct swap?

Curious as I'm thinking I may upgrade two of my older ones with the new MW kit. I did a search but the images did not show the bottom only the top so not sure.

The EB832 with a meanwell is a newer PCB version and design from Neptune Systems. The meanwell power supply is not directly compatible with the older PCB and will not solder in place- you would need to run little jumper wires to connect it *off* the PCB.

If you want to improve the reliability of the older EB832, upgrade the capacitors or just regularly replace the 12v supply.

 

[areefer01]

The EB832 with a meanwell is a newer PCB version and design from Neptune Systems. The meanwell power supply is not directly compatible with the older PCB and will not solder in place- you would need to run little jumper wires to connect it *off* the PCB.

If you want to improve the reliability of the older EB832, upgrade the capacitors or just regularly replace the 12v supply.

Ah - thanks. I didn't catch that information with regards to the PCB change. Good information. Thanks.

 

[ca1ore]

Both my original 832 have now failed in this way. They’re sitting in a closet somewhere waiting for me to have the time to attempt this fix.