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Re: Failed US-24-500W, 13 months of use, repair options?


@whowe82 wrote:

Can you hear the crowd chanting... "Shoot it!  Shoot it!  Shoot it!"


Can you hear the crowd chanting... "Will it blend? Will it blend?

https://www.youtube.com/watch?v=lAl28d6tbko

My name is Jesus. I'm Mexican. You pronounce it HAY-soos not GEE-sus.
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Re: Failed US-24-500W, 13 months of use, repair options?


@Magbis wrote:

@whowe82 wrote:

Can you hear the crowd chanting... "Shoot it!  Shoot it!  Shoot it!"


Can you hear the crowd chanting... "Will it blend? Will it blend?

https://www.youtube.com/watch?v=lAl28d6tbko


@Magbis,

 

Sooo... my liquid nitrogen dewar showed up Saturday... things are about to get cool over at my YouTube channel with different types of equipment Man Happy  http://www.youtube.com/williehowe

 

First thing we're going to do is totally freeze an old wrt54g and watch it shatter.. Man Happy  For science and the progression of wireless technology.. Man Wink

 

IMG_20160604_131300.jpg

Need Ubiquiti Config Videos? https://www.youtube.com/williehowe
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Re: Failed US-24-500W, 13 months of use, repair options?

@Magbis

 

Safety First:

 

IMG_20160604_114401.jpg

Need Ubiquiti Config Videos? https://www.youtube.com/williehowe
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Re: Failed US-24-500W, 13 months of use, repair options?


@whowe82 wrote:

Sooo... my liquid nitrogen dewar showed up Saturday.

 Mine showed up last Christmas morning.

fb9e70f69e743bfac10aaab2578f07f1

My name is Jesus. I'm Mexican. You pronounce it HAY-soos not GEE-sus.
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Re: Failed US-24-500W, 13 months of use, repair options?

For what it's worth, I walked into work this morning to find my US-24-500W also stone cold dead. The exact same resistor is fried. This was connected on a UPS. I'm 15 months in, and UBNT says "sorry," even though I'm willing to pay for a new power supply. No burn marks but the resistor definitely ate it. Guess if I try my hand at soldering I can't make it any worse!

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Re: Failed US-24-500W, 13 months of use, repair options?

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Re: Failed US-24-500W, 13 months of use, repair options?

Paging @UBNT-Cody and @UBNT-Brandon
I can not teach you anything. I can only make you think. Please don't forget to mark posts as solutions, and to give kudos when something solves your issue.
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Re: Failed US-24-500W, 13 months of use, repair options?

I wasn't there to hear the boom, from the logs of other services it looks like things hit the fan around 5 in the morning. Upon opening the case, it's the resistor at hole C24 on the power supply that failed. I ordered some from Digi-Key ($5) and will take a stab at it at some point, I guess if I get it working it can be a backup switch.

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Re: Failed US-24-500W, 13 months of use, repair options?

Does your switch have a console port, see post 4 in the linked thread.

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Re: Failed US-24-500W, 13 months of use, repair options?

No, it doesn't have a console port.

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Re: Failed US-24-500W, 13 months of use, repair options?

In that case wait for @UBNT-Brandon to respond before trying to fix it yourself.

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Re: Failed US-24-500W, 13 months of use, repair options?

@UBNT-Brandon mentioned in the other thread "We had some issues with the very first release version (which do not have a console port) so we're extending replacement terms for anyone who has issues with these.".  Terms were extended in my case.

 

It would be nice if we could order parts, though, as I have another US-24-250W that needs a new power supply that I'd almost prefer swapping out the part to going through the RMA process.  *shrug* 

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Re: Failed US-24-500W, 13 months of use, repair options?

Yeah, the power supply is easy to get to and clearly made by a third-party, could just drop in a replacement.

 

Thanks all for chiming in! What a great community. I'll see if I get a response from UBNT before I try fixing it myself.

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Re: Failed US-24-500W, 13 months of use, repair options?

I emailed sales at Gospower(.com) requesting to purchase one “Gospower G0684-50013240A” but never received a reply.  :/  I even gave them a description of their part - "It is an AC to DC power supply that provides 26.5VDC @ 18.9A, 53VDC @ 9.5A and 24VDC @ 2A" hoping they'd offer a similar (non-OEM) model as they don't really have that specific configuration listed on their site.

 

Worked out great in the end, though, thanks to UBNT extending their coverage.

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Re: Failed US-24-500W, 13 months of use, repair options?

We'll be reaching out soon.

Want to try out new features or fixes before they're released as Stable? Sign up for Beta here: https://help.ubnt.com/hc/en-us/articles/204908664-How-To-Signup-for-Beta-Access
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Re: Failed US-24-500W, 13 months of use, repair options?

Just in case anyone else experiences these power supply failures and are out of warranty - As long as you can provide 24v to the main board and daughter boards the switch will boot and provide 24v POE.  Obviously it would be better if UBNT would offer a replacement power supply, but this is better than scrapping the unit entirely.

 

IMG_20161028_122559.jpg

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Re: Failed US-24-500W, 13 months of use, repair options?

We've just had something similar happen to a US-8-150W (13 months in; PSU not supplying DC voltage). This one is has a GO398-15011480A but I've not stripped it down to look for component damage (yet). Anyone else seen this? Still no luck sourcing a replacement PSU? I agree with the rest that this is a shame as it would be a simple swap.

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Re: Failed US-24-500W, 13 months of use, repair options?

I just had the same thing happen to me as well (US-24-250W, 16 months in). I opened the case and see no obvious damage, but there are no LEDs lit or fans spinning so I believe it's the PSU.

 

When contacting support they basically told me I was out of warranty (true), but to try and replace the PSU. I'm not sure with what though since the components don't seem to be generally available...

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Re: Failed US-24-500W, 13 months of use, repair options?

When I took the power supply apart, resistor R5 was fried. They were on a UPS but I changed UPS's since then in hopes that it might handle it better. Some random employee on the forums forced the RMA through. It took like 2 months but a new one eventually showed up. I keep it as a backup since now I know the power supply could fail unexpectedly. Short of that, I guess I would pick up a 24V power supply from Digikey and try to make it work. AFAIK Ubiquiti doesn't make the power supplies independently available and I couldn't find anything about the Chinese company that makes them online. 

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Re: Failed US-24-500W, 13 months of use, repair options?

What country are you in, @tobiassorensen? 16 Months is way to soon. In any European country your distributor should replace it.