Quattrohead
Emperor Of Solar
I am noticing your grid voltage is rather high, is that so if you measure it with a multimeter?
With a multimeter it’s measuring 240 volts.I am noticing your grid voltage is rather high, is that so if you measure it with a multimeter?
How do you have it wired?View attachment 274205
When the 18Kpv is wired into the gridboss and gridboss mode activated, loads will not feed from the 18Kpv grid to the loads. Hope that made sense..
Do you have the CTs installed? are they reversed?No grid boss
Yes
replacement for the fan issue.
The 18Kpv will power the loads in Off Grid Mode, but as soon as on grid is used all the Loads go dead.
Ours runs right at 250 on the graphs and 245-249 VAC on a meter.With a multimeter it’s measuring 240 volts.
CT are not reversed. Sorry it’s dark out.Can you provide a photo of the CT installed location, please include the CT arrows and the direction pointing towards the inverter.
Ours runs right at 250 on the graphs and 245-249 VAC on a meter.
Just one thought, any chance the Load breakers are flipped to the Off position inside the 18K's door?
Actually that can't be it if it will power the loads in off grid mode Yep sounds like they have updated the 18k to work with the Grid Boss and introduced a bug into software that was already working for non Gridboss use of the 18K. I agree looks like the software is commanding opening one set of the 200 amp relays.
I am not changing my 18K software unless forced to.
Side question are those 10awg?CT are not reversed. Sorry it’s dark out. View attachment 274299View attachment 274300View attachment 274301View attachment 274302View attachment 274298
Should be 6 awg, but they are connected to a 40 amp main panel breaker. And the loads run to a critical load panel.Side question are those 10awg?
I tried that, gen port is AC Coupled inverter. I went ahead and installed the old 18Kpv to verify the wiring and it has Firmware FAAB 1B1C. And everything is working correctly. I like that SS let you return the old unit after receiving the replacement now.Have you tried enabling and disabling Grid Boss mode both in the web portal and on the unit and seeing what happens?
What is connected to the gen port? Does removing that change anything?
With old inverter reinstalled ?working good now.
Lol, I was starting to think I was the only one in the club. The 3rd inverter is going back today. The second inverter's fans started working correctly again, after sitting for so many days. So, I am back in the 2XRMA'ed club. Hopefully the fans don't give me anymore problems.Well that's it then, inverter number 3 is toast. Send it back and get your fourth one. On my third 18k here and, after watching your surging fans videos, I realize that mine does that too. I'm gonna hold onto it as long as I can to avoid being in the 3x RMA'ed 18k club with you.
So I have an early 18kpv, haven't noticed any issue with the fans. Could you enlighten me on this?With old inverter reinstalled ?
By the way for those not familiar, the old inverter has a weird fan issue.
I would guess 7 to 8 months.How long in time were the 18k's in operation before the siren fan effect started happening guys?