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My Megarevo 8K went boom.

minerva said:
You

You have many options. Megarevo has the ability to do time-shifting and back feed battery power into the grid. Few have that ability. There are relatively cheap and reliable off-grid inverters; I wouldn't bother with separate components.
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Since I'm off-grid, time shifting and feeding to the grid are irrelevant to me. The most important thing is that my batteries and inverter function reliably with a minimum of fuss.
 
chriscappuccio said:
Since I'm off-grid, time shifting and feeding to the grid are irrelevant to me. The most important thing is that my batteries and inverter function reliably with a minimum of fuss.
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My point exactly. You have dozens of affordable all-in-one options.
 
Seems like if any cheap components on the AIO fails, I'm out until it gets swapped. I'd rather use multiple Victron inverter(s). Multiple AIOs isn't the worst option, I guess. But if I'm depending on each LV6548 for each half phase or whatever, that's still not great.
 
Well my 8k stopped working today. At around 9:30 this morning the EPS turned off. The screen was frozen and not-responsive to button presses. I turned it off, let it sit for about a minute, and turned it back on. It is stuck on "INIT, STANDBY, STANDBY". All values are zero. No error codes. It is still communicating with the Solarman website, and even there, everything is just zero. :unsure:
 
NCSolarGarage said:
Well my 8k stopped working today. At around 9:30 this morning the EPS turned off. The screen was frozen and not-responsive to button presses. I turned it off, let it sit for about a minute, and turned it back on. It is stuck on "INIT, STANDBY, STANDBY". All values are zero. No error codes. It is still communicating with the Solarman website, and even there, everything is just zero. :unsure:
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Sorry to hear this! Please keep us posted with updates.

Two failures on this forum alone, given the small number of users, does not sound encouraging. Never mind how many software bugs have been discussed. It will be interesting to see how the others hold up and how the MFG handles the issues...
 
Well, oddly enough, I noticed that my firmware page showed ARM: V1.03.06 but DSP: V0.00.00.

I figured it was worth a try so I grabbed the firmware from the other thread, uploaded it to the inverter and rebooted. Sure enough, its back up and running. :unsure::unsure:(y)
 
NCSolarGarage said:
Well, oddly enough, I noticed that my firmware page showed ARM: V1.03.06 but DSP: V0.00.00.

I figured it was worth a try so I grabbed the firmware from the other thread, uploaded it to the inverter and rebooted. Sure enough, its back up and running. :unsure::unsure:(y)
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Great news, glad to hear it! Any feel for changes in the new FW?
 
NCSolarGarage said:
Well, oddly enough, I noticed that my firmware page showed ARM: V1.03.06 but DSP: V0.00.00.

I figured it was worth a try so I grabbed the firmware from the other thread, uploaded it to the inverter and rebooted. Sure enough, its back up and running. :unsure::unsure:(y)
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OMG, I just noticed my DSP was V0.00.00 this morning on Solarman. Checked it on the inverter and showing the same thing. Just updated the software two days ago. Still working though.
 
Did you folks try to update the firmware before it ended up being 0.0.0?

An update on my failed inverter. Crickets from Megarevo. Not one response.
However, the Alibaba supplier - LovSun - that provided me with the inverter, did step up to the plate and sent me another one. It did cost me an extra $600 for shipping. I am, however, back in business. So thank you LovSun and Tina but the jury on Megarevo is in for me.
 
minerva said:
Did you folks try to update the firmware before it ended up being 0.0.0?

An update on my failed inverter. Crickets from Megarevo. Not one response.
However, the Alibaba supplier - LovSun - that provided me with the inverter, did step up to the plate and sent me another one. It did cost me an extra $600 for shipping. I am, however, back in business. So thank you LovSun and Tina but the jury on Megarevo is in for me.
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I decided to pass on this inverter due to your experience and lack of contact from Megarevo. TY for sharing everything.
 
The new one keeps freezing up. The screen stops updating even though the interface remains responsive. (sighs)
 
minerva said:
The new one keeps freezing up. The screen stops updating even though the interface remains responsive. (sighs)
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What firmware? After V1.04.09 I did not have the freeze up anymore and the update to Solarman worked fine.
 
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It shipped with V1.03.09 and V1.04.09. Are we at V2 now or that was a typo?
 
minerva said:
We are all different. Some of the best moments of my life involved taking risks.
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I’m not against taking risks. :)
I’m an off-roader with a ‘modified’ jeep, I’ve fished in life-threatening gales on Champlain, and I’ve ridden my CB350F on 1970s tires almost to 100mph a couple of years back. All fun!

But I just ain’t never been able to bring myself to Ali, Baba.
 
12VoltInstalls said:
I’m not against taking risks. :)
I’m an off-roader with a ‘modified’ jeep, I’ve fished in life-threatening gales on Champlain, and I’ve ridden my CB350F on 1970s tires almost to 100mph a couple of years back. All fun!

But I just ain’t never been able to bring myself to Ali, Baba.
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I had no other choice. At least not a choice with a price tag smaller than $6,000-8,000.
 
minerva said:
So, I don't want to jinx it but this is what is happening:

Lovsun surprised me. They are sending a new inverter. It will cost me about $600 shipping (assuming I can avoid tariffs being a replacement) but that's still better than $2,500 down the drain.
Megarevo never responded. Even the email contact who previously (very slowly) responded to technical inquiries has ignored multiple emails about the warranty. Same with their FB CS, WhatsApp and other e-mail contacts. I have not tried calling over the phone. Zero response.
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I bought this same unit under the GSL brand. GSL has been responsive, but hadn't come up with any solutions to my problems (mainly firmware upgrade) for weeks, so my unit was down all that time.
I wrote a review on Alibaba, since I paid through them, and it got their CEO's attention pretty quickly and they got me fixed within 24 hours. Not sure if that would help you or not.
 
Hrschk said:
I bought this same unit under the GSL brand. GSL has been responsive, but hadn't come up with any solutions to my problems (mainly firmware upgrade) for weeks, so my unit was down all that time.
I wrote a review on Alibaba, since I paid through them, and it got their CEO's attention pretty quickly and they got me fixed within 24 hours. Not sure if that would help you or not.
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I did get the replacement from the retailer thankfully.
 
minerva said:
With all its quirks, I have been successfully using an R8NA Megarevo hybrid inverter for about 6 months.
This morning it started throwing various errors - grid frequency, voltage, busbar voltage, iso, etc. I said Ok, let's reboot. Not the first time I had to do that.
During reboot, I hear a loud bang, and a small piece of plastic flies out of the case. It's dead now. It replaced a 6KW SUnpower inverter that ran for 9 years nonstop with the same solar array.
I played the lottery and lost. I put so much effort into this. Maybe someone can identify what component blew up.
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Is this the same as R8KLNA with the 4 mppts? Looking at purchasing. Now, I wonder
 
Rho said:
Is this the same as R8KLNA with the 4 mppts? Looking at purchasing. Now, I wonder
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It is. It really depends on how risk tolerant you are. Don't expect much support from the manufacturer.
 
minerva said:
It is. It really depends on how risk tolerant you are. Don't expect much support from the manufacturer.
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Well heck guess I will look at the mppsolar more. I like the 4 mppts perfect for my set up. Not perfect if it goes boom. I would use total off grid. Thank you for responding
 
Rho said:
Well heck guess I will look at the mppsolar more. I like the 4 mppts perfect for my set up. Not perfect if it goes boom. I would use total off grid. Thank you for responding
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If you don't need a hybrid mode and the relatively rare ability to export from battery to grid, you have options.
 
minerva said:
If you don't need a hybrid mode and the relatively rare ability to export from battery to grid, you have options.
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Any suggestions. I am currently using growatt spf5000 es with transformer.
I am creating new load center gor my pool,minisplits seperate from house. Long story short I have parasite in house load box. Trying to locate. Cement walls ,ground connects all make it frustrating for novice me to locate it. I use 305 when my entire house all breakers are off. I am thinking it underground neighbors pool pump. Dam if I can find where.

So back to the new inverter and panels. I am running all new lines for pool pump and minisplits. This way I know there is no foul play on those lines. All above ground into a new load box with new breakers.
 
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