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Hello,
I've got an R.1 inverter. I recently changed from ATS mode to UPS mode in preparation for my move. I turned the unit off, turned the batteries off, and discharged the unit with the front power button. Week goes by. Now when I try to turn it on, it stutters the first time, failing to start, now nothing whenever I push the power button. Green lights inside appear to be powered on. I tried turning off batteries, letting unit discharge on its own until green lights inside turn off, turn batteries back on and still nothing. Is the unit stuck thinking battery voltage is too low? How to fix?
Hello,
Uh oh. Do you mean "A.1" inverter?? Were you using AC input?
What's the battery voltage spec on the inverter?
AC input was off, yes A.1, 48V
Hmm. Not normally an issue on 48v inverters...but it WAS disconnected from battery when you powered it down with the power switch (as I personally do frequently)...
Unfortunately, the main power supply chip seems to be very fragile (as we have learned!) It's a bit comical that each board revision after A.1 adds progressively more and more protections for that stupid chip. I'd switch to a different one, but the only other option I'm aware of is a U.S.-based chip (as opposed to a Chinese one). As a result, it costs 8x as much, and is extremely hard to procure.
Depends how electrically handy you are and/or how much you'd like to get your hands inside the inverter, BUT if you remove the 4 LCD screws (and let it fall into the chassis), the lid can be fairly easily removed. And I bet you'll find a "magic smoke hole" in the top of the main power chip right next to the "NEG" spade lug--which is not your fault.
If that's the issue (and you're up for it), we can send you a Rev. C control board set--which adds numerous protections to prevent that stupid chip from blowing up, as well as significant other improvements, etc. I will be happy to go over the rewiring via video call if necessary to ensure it's wired correctly BEFORE being powered up 😉.
Sorry for the delay, I've been very busy trying to get moved. Here's what I photographed. I may have found this 'magic smoke hole' on the wifi board which was behind the LCD panel, is it possible that this is the culprit? Otherwise, I've got the other photo you requested along with some mosfets which I'd like to make sure look ok?
Thanks very much. Yes, I would be willing to perform any kind of swap, in fact I would love to learn..jpeg.f4f299bc59f4f5970439b13c5f5ec433.jpeg)
So no, that's not the "smoke hole"...that's a design vent in the ESP32 on the LCD screen.
One thing I do see in the last photo...there's a loose nut rolling around in the chassis. That could cause all sorts of trouble.
I'll PM you later, and if it works schedulewise we can run diagnostics tomorrow, figure out what's wrong and how to fix it.
I saw the nut, it might be from opening the case. I wasn't planning on powering the unit on anytime soon, and I'll be sure to move that now. And sure, I'll be around.
Thank you.
-Josef
After much delay on MY PART, Sid personally talked to me for an hour and a half to resolve my issue. You know, you can't really judge the quality of a company when nothing goes wrong, as you cannot prove a negative. It's when something actually does go wrong that a company has the opportunity to shine. Sid took care of me, and my 1st edition inverter (a general rule of thumb is never buy 1st edition from any company, even Toyota R1 has bugs) is now on to the 4th edition (D) - I have EVERY BIT OF CONFIDENCE IN THIS COMPANY. I'm telling my friends, I'm telling my neighbors, I'm telling my DOG - everything this company does is like the legendary APPLE circa 1980 - PERFECTION.
THANKS SEAN AND SID FOR YOUR AMAZING PRODUCT, and perhaps more importantly AMAZING SUPPORT. YOU ROCK!
Sorry, we don't sell dog treats.
...and if we did, I wonder what they'd taste like, electricity?