EB3A: In UPS mode, inverter overloads are turning off AC outlets

Send your SN to Bluetti Service and ask them to push you a firmware update to DSP 2056.12, there is a chance that may fix your problem but it didn’t for me. I have 3 of these units, 2 of them have this issue every few days but the 3rd one has been operating for >1 month without issues.

I will do that, however i just realized eco mode may have been on, so going to try it again today.

Good luck, it didn’t make a difference for me as my eco mode was off for all 3 units.

@snowstorm would you mind telling me what the error code is now?

Good afternoon,
After finding eco mode on and turning that off i have 2 devices powering just fine for over 24 hours, they are around 5watt total though, going to move my verizon 5g over to it tonight which draws roughly 18 watt, which ideally is that i want to keep up all the time. Will keep you posted.

I have returns the 2 units that continue to have the overload issue after updating the 2056.12, my 3rd unit haven’t overloaded in 5 weeks and is running 2056.10 still. However my 3rd unit is prone to overheating in UPS mode as the cooling fan only seems to run when power is coming from the inverter. I believe this is a software issue. That is in another thread

I had this problem with mine from Day 1. Had it replaced, and have had this message once in several weeks.

The problem is not Eco mode. I turned it off and still had the problem.

I think that it’s an intermittent problem in the inverter hardware.

Regards, Gary.

| msgwolf
April 22 |

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I will do that, however i just realized eco mode may have been on, so going to try it again today.

Good morning all,
Did not plug in my 5g router, but some of my tv electronics, with the tv off total draw around 35 watts, woke up to the overload and ac outlets out. Thinking about returning, but some solar ideas i want to try out, so my keep and hope for a fix down the road. I have tiill May 4th to decide.

I agree, acting more hardware related, with how long inverters and UPS technology has been around i didn’t expect a issue with low draw devices.

With my original device, I got an inverter overload at least one time with zero load (with eco mode turned off).

If you’re getting inverter overload, you need to have the device replaced.

Regards, Gary.

| msgwolf
April 24 |

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I agree, acting more hardware related, with how long inverters and UPS technology has been around i didn’t expect a issue with low draw devices.

I noticed that the EB3A USA page has 24/7 UPS listed as a feature, but the Canadian page no longer has 24/7 listed as a feature of the EB3A. I really hope they would fix this.

Good evening,
Well after also discovering the PV charge issue this unit has, i am returning it and trying a different manufacturer and model.

What PV charge issue do you have?

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Good morning,
PV Low voltage issue, if you search for it it comes up, you need 10 to 12 watts on your pannel b4 the PV charging will start, after it starts it will charge down below that.

I see… is it actually a problem if it doesn’t charge below 10w though? At say 8w, it will take 45 hours to charge EB3A, 4 straight days of daylight. Won’t almost all practical charging be more than 10-12W?

New EB3A owner here. Noticed the noisy fan PWM hum right away. And then the random shutdowns started. 2 so far within 24hrs. It seems Bluetti has pushed a firmware update today v2056.13, I’m testing it right now. If it doesn’t fix it, I’ll return it. What a bummer, it’s a great little unit.

Don’t bother with the update. It made it significantly worse.
Failed within 2hrs instead of every 12hrs.
As a software developer, it’s become clear that Bluetti has no clue how to fix this issue, and I refuse to be a beta tester for a company this large.
The EB3A is now boxed up and will be returned to Amazon. =(

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Between myself and my brother, we have bought 4 of these. 3 have the overload issue, updating firmware to .12 didn’t help and returned the first 2. My brother tried to update to .13 but still overloads and thus returned. One of mine (purchased with the other 2 failing ones) had been running on .10 without issues for 2 months already, just updated it to .13, hopefully this one would stay working. Maybe I should not have updated it to .13 if it was working…

Do we know what changed with DSP .13?

Great. I installed my EB3A this morning, this afternoon it shut down with inverter overload.
The fact that this problem is so common is pretty disappointing.

EDIT: Lasted 2 hours the second time.
After the 1st fail I updated to the latest firmware and, thinking maybe the problem was there was no DC load, I turned on DC and connected my phone for charging.

Here’s the really stupid thing. The DC KEPT WORKING. I had the app up on my phone and it clearly showed current flow both Current INPUT from the Grid AND DC Output. The only thing that failed is the AC Output got turned off.

So wtf.

Jumped through all their ridiculous hoops, got a replacement, failed twice within a day.

This is just stupid.

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