PSU3300-3 PLUS solid red indicator

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#1Mar 26, 2024, 08:38 AM
Hey everyone, I just got a new power supply from China, hooked it up to my 1166, and it was running perfectly for about 2 hours. But when I moved the rig to my farm, plugged everything in, and powered up the PSU, it lit up with a blinking green LED. The miner booted up fine, but as soon as it tried to activate the power for the hashboards, the LED switched to a solid red. The miner is still on and I can access it via the web, but every couple of minutes it tries to reboot and that solid red LED on the PSU doesn't change. Any ideas on what could be going on?
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coin_sigmaLegendary
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#2Mar 26, 2024, 04:16 PM
If you could access the miner through a browser would you mind sharing the API logs here it can give us more insight into your miner's problem just put them inside the insert code tag so that it is easy to read? What I see is that the PSU is not connecting properly or maybe it didn't give enough power when the hashboard starting to hash.
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#3Mar 26, 2024, 06:41 PM
hi, even using the jumper with power supply outside, it should have output from 13v main circuit, and measuring with multimiter, there´s a short beetween +13v and GND, eventough, follows the LOG
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coin_sigmaLegendary
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#4Mar 27, 2024, 12:08 AM
According to your logs under PS yes there is a 16 error which is pointing to a short circuit. Is the short circuit came from PSU? Disconnect the PSU to check it for short circuit and mostly capacitors or some burnt parts are common issue of PSUs.
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#5Mar 27, 2024, 03:29 AM
yes, it came from psu. no visible burns... witch caps you are refering? the high voltage ones? or the ones near output terminals? thanks
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markseedMember
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#6Mar 27, 2024, 09:34 AM
Hope this manual can be helpful for you: Avalon 3300W 3600W power supply repair tutorial
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#7Mar 29, 2024, 07:09 AM
hi many thanks, as mather of fact was one 5C430L MOSFET. regards
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coin_sigmaLegendary
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#8Mar 29, 2024, 08:41 AM
I'm talking about caps near output DC or some parts near DC output that might have some corrosions and rust that need to be cleaned with contact cleaner or any electronics cleaner. Does it seem you found the culprit? MOSFET? Is the output gone or voltage drop after checking the MOSFET? You can desolder that part and check the MOSFET if it is short. You can follow this guide here how to check short MOSFET.
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markseedMember
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#9Mar 29, 2024, 01:50 PM
I'm glad you found the culprit, that's great. If you need 5C430L MOSFET parts, feel free to contact ZEUS MINING.
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