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Hey Bruce, I hope all is well on your end. At first I was on the fence whether to go Growatt again or not. But glad I did I'm very happy with the system. And as stated in the post above, the system runs flawlessly now. But just for redundancy I also purchased a LVX6048, and the battery less...

Update: No changes since installing new G12K from watts24, it just runs flawlessly. Not a single voltage drop or code. Signature Solar shorted me initial shipping amount on the refund. That is after admitting the unit they have sent was faulty. I'm not upset about it as American Express has...

Since no LED display… Maybe a monitoring software such as PVkeeper would register the fault code.

Have you tried recalibrating. Video: https://drive.google.com/file/d/1tp1E0EzUDUAR1qSoO4D5N2dvY3WMy1I0/view?usp=sharing Tool: https://drive.google.com/file/d/1Gs6ZT3BYNtv0yosuVVOhHC-AllANV0UZ/view?usp=sharing

Deleted last message. Will update the refund situation in few days.

Thanks. I’m also very interested how many of the boards were faulty. Supposedly there are about six inside. SS will only send replacement boards internationally. Domestic purchasers must return the unit. Per SS’s policy. Will update status if I hear anything.

Hi everyone, Quick update: Been four days since new growatt 12k from watts24 was installed. And it’s been running flawlessly. No error codes. No shut offs. No more blinking reset clocks in the house :) Old unit was sent back to Signature Solar for a refund. I’ll update in few days...

Sounds good, thank you!

Title pretty much says it all. I spoke with Ian at watts24 and he advised the ground/neutral bond screw inside the inverter can be removed when feeding into a main panel, which has a already bonded N/G. Anyone have experience running the LVX6048 this way. Or have an idea if the screw removal...

Hey Bruce, sorry for late reply I wanted to finish testing everything before posting an update. Updated with Win10 but use old win7 laptop for monitoring via USB. Had high hopes but no luck after the update. And not really sure if the 61 error was ever resolved, the inverter only ran for...

Update: Firmware was flashed this morning. And other than few strange sounds the unit produced in the morning, everything ran fine up until few minutes ago. Another low battery error, but this time at 90% instead of 91%. Voltage dropped to zero. Batteries were all blinking red alarm LED. Ran...

Update: Sent SigSolar screenshot of PVkeeper low battery error at 91% of SOC. Along with more requested details. Signature Solar has not responded ever since. This was Monday 6/6. So far no response to follow up email from Wednesday either.

Hopeful that this fixes the issue for you, kromc5.

I’ll pick up one of those microair soft starts when they’re back in stock on Amazon. And as to the overload, my 12k has no problem starting my A/C at all. Rated at 36k watt max, and when it does start and run the A/C the lights don’t even dim. For me that’s pretty good indication it can handle...

But even without the A/C same restarts happened, and not aure what could cause this. At one point when I initially tested the inverter I had a compressor running, shopvac, all lights, and whatever was in the background. And then turned on the A/C and this thing had no problems what so ever. Just...

Update: Inverter was on for about 2 hours powering the house before it experienced another hard restart. Power completely shut off for few seconds then came back on. At the time I was standing right next to the thermostat and as soon as I heard the thermostat "click" to kick on the A/C that's...

Four EG4's 48v 100ah. In parallel 400ah total.

Hey Bruce, No update yet. Haven't had much time to mess around with the system the last two weeks. But will have everything calibrated and up-and-running sometime tomorrow. The plan is to let the inverter idle for 20-30 days to see if it'll throw a fault or any voltage drops/power shutoffs/ or...

Hi Alex, I sent an email to tech support yesterday.?

Much appreciate the input RC, I’m learning something new everyday! My battery bank is four EG4’s 48v 100ah. Wires from battery to bus bar are 2awg and from bus bar to inverter 4/0. They’ve always room temp. Solar was added only recently. But even before solar was added, when I was still testing...

Thanks for sharing, kromc5. Same here, inverter’s been very random. I tried narrowing it down to a circuit breaker/run but cannot find a culprit. Even if every power hog appliance is running simultaneously the inverter does just fine handling the demand. But then at random it’ll just shut the...

Update: About 20 minutes after calibrating MPPT-inverter voltage, the 61 code came back on for about 20 seconds, but then cleared. This has happened twice today so far, once before calibration and one after. This is what the specs look like on PVKeeper.

Thanks Rich. Any idea where on the internet a firmware update could be located to one of these units?

RCinFLA, Inverter has been running without PV input for about an hour. AC output voltage under various loads is a constant 119v. Plus/minus 0.3 volts.

Thanks for chiming in RCinFLA. I sure can and will keep you posted tomorrow.

No wifi stick. I only have the USB cable.

Thanks for responding Rich. Warning code 61 came up at first during today’s first malfunction. Then after powering down and restarting no more code.

First voltage drop happened within few days of installing and testing. I didn't think much of it until it happened few more times. This is around mid March. So I contacted SigSolar. Even the tech was perplexed on why the inverter is acting this way. After sending the tech all the voltage...

Thanks for the clarification. But wouldn’t the “shorted” breaker trip while also on grid power? Or is the Growatt or BMS that much more sensitive and they just shut off? Kinda confused since everything works fine on grid power.

Thanks for the reply Timselectric. It very well could be a short. But wouldn’t a short cause the circuit breaker in the main panel-to that appliance, to also trip?

Update: Another outage after about 2 hours of continuous uneventful powering/inverting. But this time the inverter completely shut off and all four EG4 batteries' red alarm LED was on. No green LED lights. Batteries SOC 90% when this happened. @RichardfromEG4 any advice?

Title basically says it all. My inverter will experience random voltage drops. But today was something new. On top of cutting off power it had finally spat out a warning/fault code (61). Not much information in the manual on code 61 other than "External MPPT consistent warning". Anyone have any...

I’ve had random voltage drops also.

Sounds alot like what was going in with my setup. I will post in detail when I have some time later on. Long story short, my kitchen lights, bathroom lights were flickering while on growatt power. I contacted SigSolar about the issue, they asked for voltage readings. All readings are within...

Growatt is offgrid but it will charge the batteries from grid if connected. Yours might he able to do net metering(just a guess). Maybe folks with exerience with those inverters can comment