Re: [RE-wrenches] SolarEdge inverter blowing fuses

[Dave Tedeyan]

It is always the left fuse! Thanks all for the pointers. I'll double check
the monitoring, but am thinking that I will be replacing the switch with a
SQD, and replacing the taps and AC wires as well while I'm at it.
Cheers,
Dave

On Mon, Nov 1, 2021, 9:13 PM Jerry Shafer  wrote:

> Bad switch
>
>
> On Mon, Nov 1, 2021 at 5:44 PM Jason Szumlanski <
> ja...@floridasolardesigngroup.com> wrote:
>
>> See attached image. Notice the discoloration on the top of the left fuse.
>> It's always the same thing, same place.
>>
>> Jason
>>
>> On Mon, Nov 1, 2021, 8:30 PM Jason Szumlanski <
>> ja...@floridasolardesigngroup.com> wrote:
>>
>>> I should also mention that it has nothing to do with ambient heat. This
>>> has occured in all seasons and with disconnects in direct sunlight on a
>>> south wall and disconnects in air conditioned garages.
>>>
>>> It's just a garbage product. We switched to Square D for 60A D222NRB
>>> fusible disconnects and are also using their 100A circuit breaker
>>> enclosures which are cost effective. The D223NRB is also a good fusible
>>> disconnect, but pricey.
>>>
>>> Jason
>>>
>>>
>>> On Mon, Nov 1, 2021, 8:24 PM Jason Szumlanski <
>>> ja...@floridasolardesigngroup.com> wrote:
>>>
 It's the disconnect. We had dozens of this subpar disconnect design
 fail on Enphase systems. The 2 Pole has the same issue.

 GE gave us some nonsense answer that it's General Duty and not designed
 for continuous high power. Even 40A combined Enphase systems will blow a
 60A fuse.

 What you will find is the fuse will blow on one side and then
 replacements will blow at decreasing intervals until it blows daily. Our
 experience is the left side (of the 2-pole)  is far more problematic for
 some odd reason. It's not the fuse brand either.

 I believe the design fault is how the blades only hit a single contact
 on one side when they close. The Square D alternative has the blade
 slipping between two contacts.

 Sadly we have had to replace so many of these and most are supply side
 interconnections, which make it tricky and expensive.

 Jason Szumlanski
 Florida Solar Design Group




 On Mon, Nov 1, 2021, 4:26 PM Dave Tedeyan 
 wrote:

> Hi All,
>
> I am servicing a system that keeps blowing fuses on the AC side,
> although it
>  appears that everything is sized correctly. It is a SolarEdge
> SE11400A-US inverter.
>  Max continuous output current is 47.5A x 1.25 = 59.4A. There is a GE
> TG3222R
>  60A AC disconnect, and it is wired up with #6 THHN wire. The
> terminals were tight
>  and there was no evidence of arcing or burning in the past. This is
> indoors, and not
>  exposed to sunlight. No extra conductors are in the conduit.
>
> But they say that they need to replace a fuse roughly once per month.
> Has anyone
>  seen this before? Could there be some kind of fault in the inverter
> itself that
>  occasionally induces extra current? Is there any way to tweak the
> settings so that it
>  actually produces a bit more than 11.4kw? I appreciate your thoughts.
>
> Cheers,
> Dave
>
> --
> [image: Logo] 
> Dave Tedeyan, P.E.
> Owner | Sungineer Solar
> p: he | him | his
> a: 1653 Slaterville Rd. | Ithaca, NY 14850
> w: www.sungineersolar.com 
> c: (607) 288-2898
> ___
> List sponsored by Redwood Alliance
>
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Re: [RE-wrenches] SolarEdge inverter blowing fuses

[Jason Szumlanski]

Trust me when I tell you that all of the line side conductors and taps are
likely fine. It is unequivocally the switch contacts that are the issue.
That said, I usually replace the conductors when there is any indication of
overheating near the terminals. I have seen discolored copper, but it never
gets bad enough to melt insulation.

Jason


On Tue, Nov 2, 2021, 12:28 PM Dave Tedeyan  wrote:

> It is always the left fuse! Thanks all for the pointers. I'll double check
> the monitoring, but am thinking that I will be replacing the switch with a
> SQD, and replacing the taps and AC wires as well while I'm at it.
> Cheers,
> Dave
>
> On Mon, Nov 1, 2021, 9:13 PM Jerry Shafer 
> wrote:
>
>> Bad switch
>>
>>
>> On Mon, Nov 1, 2021 at 5:44 PM Jason Szumlanski <
>> ja...@floridasolardesigngroup.com> wrote:
>>
>>> See attached image. Notice the discoloration on the top of the left
>>> fuse. It's always the same thing, same place.
>>>
>>> Jason
>>>
>>> On Mon, Nov 1, 2021, 8:30 PM Jason Szumlanski <
>>> ja...@floridasolardesigngroup.com> wrote:
>>>
 I should also mention that it has nothing to do with ambient heat. This
 has occured in all seasons and with disconnects in direct sunlight on a
 south wall and disconnects in air conditioned garages.

 It's just a garbage product. We switched to Square D for 60A D222NRB
 fusible disconnects and are also using their 100A circuit breaker
 enclosures which are cost effective. The D223NRB is also a good fusible
 disconnect, but pricey.

 Jason


 On Mon, Nov 1, 2021, 8:24 PM Jason Szumlanski <
 ja...@floridasolardesigngroup.com> wrote:

> It's the disconnect. We had dozens of this subpar disconnect design
> fail on Enphase systems. The 2 Pole has the same issue.
>
> GE gave us some nonsense answer that it's General Duty and not
> designed for continuous high power. Even 40A combined Enphase systems will
> blow a 60A fuse.
>
> What you will find is the fuse will blow on one side and then
> replacements will blow at decreasing intervals until it blows daily. Our
> experience is the left side (of the 2-pole)  is far more problematic for
> some odd reason. It's not the fuse brand either.
>
> I believe the design fault is how the blades only hit a single contact
> on one side when they close. The Square D alternative has the blade
> slipping between two contacts.
>
> Sadly we have had to replace so many of these and most are supply side
> interconnections, which make it tricky and expensive.
>
> Jason Szumlanski
> Florida Solar Design Group
>
>
>
>
> On Mon, Nov 1, 2021, 4:26 PM Dave Tedeyan 
> wrote:
>
>> Hi All,
>>
>> I am servicing a system that keeps blowing fuses on the AC side,
>> although it
>>  appears that everything is sized correctly. It is a SolarEdge
>> SE11400A-US inverter.
>>  Max continuous output current is 47.5A x 1.25 = 59.4A. There is a GE
>> TG3222R
>>  60A AC disconnect, and it is wired up with #6 THHN wire. The
>> terminals were tight
>>  and there was no evidence of arcing or burning in the past. This is
>> indoors, and not
>>  exposed to sunlight. No extra conductors are in the conduit.
>>
>> But they say that they need to replace a fuse roughly once per month.
>> Has anyone
>>  seen this before? Could there be some kind of fault in the inverter
>> itself that
>>  occasionally induces extra current? Is there any way to tweak the
>> settings so that it
>>  actually produces a bit more than 11.4kw? I appreciate your thoughts.
>>
>> Cheers,
>> Dave
>>
>> --
>> [image: Logo] 
>> Dave Tedeyan, P.E.
>> Owner | Sungineer Solar
>> p: he | him | his
>> a: 1653 Slaterville Rd. | Ithaca, NY 14850
>> w: www.sungineersolar.com 
>> c: (607) 288-2898
>> ___
>> List sponsored by Redwood Alliance
>>
>> Pay optional member dues here: http://re-wrenches.org
>>
>> List Address: RE-wrenches@lists.re-wrenches.org
>>
>> Change listserver email address & settings:
>> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>>
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>> the other:
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>> http://www.members.re-wrenches.org
>>
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>>>
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[RE-wrenches] Radian 8048's shutting down on generator stop

[Jason Szumlanski]

I have a client (DIY) who has dual 8048's and he is starting the generator
using both high load and low voltage settings with the AGS. It worked
flawlessly for 9 months. Then for a couple of months when the generator
shut down the lights would flicker. Eventually it started shutting down his
loads completely for a couple of minutes and it would start back up
automatically. Now when the generator shuts down the inverters shut down
and need to be restarted manually.

He said there is an error code but he never wrote it down.

Any ideas given the sequence of events?

Lead acid batteries. 20kW generator. Despite it being DIY from an online
wholesaler, he did hire a licensed electrician and that electrician
consulted with me a bit prior to installation, so it's a pretty good job.
I'm thinking it's an internal Radian setting or fault causing this.

Jason Szumlanski
Florida Solar Design Group
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Re: [RE-wrenches] Radian 8048's shutting down on generator stop

[Jason Szumlanski]

Whoa! I just got access to his OpticsRE. It says battery voltage reached as
high as 66V!!! (48V Nominal). I don't know if that's true yet or a
acrtually voltage metering issue. But it appears that when the generator
stops the invert mode kicks in and immediately shuts down due to high
battery voltage. I guess the inverters were coming back alive when the
voltage settled to the normal range. But the homeowner reports that when he
manually restarts the system the battery is around 54V. I'm not sure how
long after the shutdown this occurs.

So at this point I told him he needs to be very careful and make sure he's
not cooking the batteries by testing with a volt meter during charging to
see what's really going on.

I'm concerned because the FNDC, both GS8048s and both FM100s all report
abnormally high battery voltage. That suggest that the voltage is actually
that high. But the charger setpoints are clearly set to defaults for absorb
and float. I don't know why the voltage would blow past the setpoints.

I misspoke in my initial email. He has AGS voltage start and SOC start set
up.




On Tue, Nov 2, 2021 at 3:09 PM Jason Szumlanski <
ja...@floridasolardesigngroup.com> wrote:

> I have a client (DIY) who has dual 8048's and he is starting the generator
> using both high load and low voltage settings with the AGS. It worked
> flawlessly for 9 months. Then for a couple of months when the generator
> shut down the lights would flicker. Eventually it started shutting down his
> loads completely for a couple of minutes and it would start back up
> automatically. Now when the generator shuts down the inverters shut down
> and need to be restarted manually.
>
> He said there is an error code but he never wrote it down.
>
> Any ideas given the sequence of events?
>
> Lead acid batteries. 20kW generator. Despite it being DIY from an online
> wholesaler, he did hire a licensed electrician and that electrician
> consulted with me a bit prior to installation, so it's a pretty good job.
> I'm thinking it's an internal Radian setting or fault causing this.
>
> Jason Szumlanski
> Florida Solar Design Group
>
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Re: [RE-wrenches] SolarEdge inverter blowing fuses

[Jerry Shafer]

looks like one more failure, once they start there is no going back as the
fuse retainer loses its spring

On Tue, Nov 2, 2021 at 1:38 PM Jason Szumlanski <
ja...@floridasolardesigngroup.com> wrote:

> Ugh - no joke - we just found another one this morning with a blown fuse.
> Pic attached. It's really a nightmare.
>
> Check out how discolored the top of the left fuse is (again). Always the
> same fault...
>
> Jason Szumlanski
> Florida Solar Design Group
>
>
>
>
> On Mon, Nov 1, 2021 at 8:43 PM Jason Szumlanski <
> ja...@floridasolardesigngroup.com> wrote:
>
>> See attached image. Notice the discoloration on the top of the left fuse.
>> It's always the same thing, same place.
>>
>> Jason
>>
>> On Mon, Nov 1, 2021, 8:30 PM Jason Szumlanski <
>> ja...@floridasolardesigngroup.com> wrote:
>>
>>> I should also mention that it has nothing to do with ambient heat. This
>>> has occured in all seasons and with disconnects in direct sunlight on a
>>> south wall and disconnects in air conditioned garages.
>>>
>>> It's just a garbage product. We switched to Square D for 60A D222NRB
>>> fusible disconnects and are also using their 100A circuit breaker
>>> enclosures which are cost effective. The D223NRB is also a good fusible
>>> disconnect, but pricey.
>>>
>>> Jason
>>>
>>>
>>> On Mon, Nov 1, 2021, 8:24 PM Jason Szumlanski <
>>> ja...@floridasolardesigngroup.com> wrote:
>>>
 It's the disconnect. We had dozens of this subpar disconnect design
 fail on Enphase systems. The 2 Pole has the same issue.

 GE gave us some nonsense answer that it's General Duty and not designed
 for continuous high power. Even 40A combined Enphase systems will blow a
 60A fuse.

 What you will find is the fuse will blow on one side and then
 replacements will blow at decreasing intervals until it blows daily. Our
 experience is the left side (of the 2-pole)  is far more problematic for
 some odd reason. It's not the fuse brand either.

 I believe the design fault is how the blades only hit a single contact
 on one side when they close. The Square D alternative has the blade
 slipping between two contacts.

 Sadly we have had to replace so many of these and most are supply side
 interconnections, which make it tricky and expensive.

 Jason Szumlanski
 Florida Solar Design Group




 On Mon, Nov 1, 2021, 4:26 PM Dave Tedeyan 
 wrote:

> Hi All,
>
> I am servicing a system that keeps blowing fuses on the AC side,
> although it
>  appears that everything is sized correctly. It is a SolarEdge
> SE11400A-US inverter.
>  Max continuous output current is 47.5A x 1.25 = 59.4A. There is a GE
> TG3222R
>  60A AC disconnect, and it is wired up with #6 THHN wire. The
> terminals were tight
>  and there was no evidence of arcing or burning in the past. This is
> indoors, and not
>  exposed to sunlight. No extra conductors are in the conduit.
>
> But they say that they need to replace a fuse roughly once per month.
> Has anyone
>  seen this before? Could there be some kind of fault in the inverter
> itself that
>  occasionally induces extra current? Is there any way to tweak the
> settings so that it
>  actually produces a bit more than 11.4kw? I appreciate your thoughts.
>
> Cheers,
> Dave
>
> --
> [image: Logo] 
> Dave Tedeyan, P.E.
> Owner | Sungineer Solar
> p: he | him | his
> a: 1653 Slaterville Rd. | Ithaca, NY 14850
> w: www.sungineersolar.com 
> c: (607) 288-2898
> ___
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches@lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
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> the other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
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Re: [RE-wrenches] Radian 8048's shutting down on generator stop

[Tump]

I would check at what voltage the Generator AC input set points are at. If the 
generator AC disconnect voltage is set to low say 100V then the inverters stay 
connected to that voltage then unlatch. Perhaps you are seeing a voltage spike 
at that time. Meters will show spikes not averages.
> On Nov 2, 2021, at 4:46 PM, Jason Szumlanski 
>  wrote:
> 
> Whoa! I just got access to his OpticsRE. It says battery voltage reached as 
> high as 66V!!! (48V Nominal). I don't know if that's true yet or a acrtually 
> voltage metering issue. But it appears that when the generator stops the 
> invert mode kicks in and immediately shuts down due to high battery voltage. 
> I guess the inverters were coming back alive when the voltage settled to the 
> normal range. But the homeowner reports that when he manually restarts the 
> system the battery is around 54V. I'm not sure how long after the shutdown 
> this occurs.
> 
> So at this point I told him he needs to be very careful and make sure he's 
> not cooking the batteries by testing with a volt meter during charging to see 
> what's really going on.
> 
> I'm concerned because the FNDC, both GS8048s and both FM100s all report 
> abnormally high battery voltage. That suggest that the voltage is actually 
> that high. But the charger setpoints are clearly set to defaults for absorb 
> and float. I don't know why the voltage would blow past the setpoints. 
> 
> I misspoke in my initial email. He has AGS voltage start and SOC start set 
> up. 
> 
> 
> 
> 
> On Tue, Nov 2, 2021 at 3:09 PM Jason Szumlanski 
>  > wrote:
> I have a client (DIY) who has dual 8048's and he is starting the generator 
> using both high load and low voltage settings with the AGS. It worked 
> flawlessly for 9 months. Then for a couple of months when the generator shut 
> down the lights would flicker. Eventually it started shutting down his loads 
> completely for a couple of minutes and it would start back up automatically. 
> Now when the generator shuts down the inverters shut down and need to be 
> restarted manually. 
> 
> He said there is an error code but he never wrote it down.
> 
> Any ideas given the sequence of events?
> 
> Lead acid batteries. 20kW generator. Despite it being DIY from an online 
> wholesaler, he did hire a licensed electrician and that electrician consulted 
> with me a bit prior to installation, so it's a pretty good job. I'm thinking 
> it's an internal Radian setting or fault causing this. 
> 
> Jason Szumlanski
> Florida Solar Design Group
> ___
> List sponsored by Redwood Alliance
> 
> Pay optional member dues here: http://re-wrenches.org
> 
> List Address: RE-wrenches@lists.re-wrenches.org
> 
> Change listserver email address & settings:
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> Tump 
> mailto:t...@swnl.net%22%20%5Co%20%22blocked::mailto:t...@swnl.net>3...@gmail.com
>www.SWNL.net 
> http://www.swnl.net/%22%20%5Co%20%22blocked::http://www.swnl.net/>
> Solarwinds Northernlights   
>Serving Mid Coast Maine & Northern California
>  207-832-7574   Cl. 610-517-8401  
> 
>   Blair "TUMP" May
>  MAINE'S CHARTER 
>   NABCEP"Certified PV Installer" 
>
>     MAINE'S CHARTER 
>   Trace Xantrex "Certified" Dealer / Installer"
> 



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Re: [RE-wrenches] Radian 8048's shutting down on generator stop

[Maverick Brown]

Sounds like the generator is connected to AC Out terminals (AC coupling). This 
will ‘work’ to charge batteries. It will function but the Radian has no way to 
regulate battery voltage. One would typically install an AUX controlled AC 
relay on a grid tie inverter set up for AC coupling. In your case, make sure 
the generator is landed on the generator terminals, AC2. 

Maverick Brown
Off-Grid Solar Commander since 2006
Maverick Solar Enterprises, Inc.
 • Solar Commander Remote Power
 • SunFlow Systems Cathodic Protection 
maver...@mavericksolar.com
512-460-9825


> On Nov 2, 2021, at 3:46 PM, Jason Szumlanski 
>  wrote:
> 
> 
> Whoa! I just got access to his OpticsRE. It says battery voltage reached as 
> high as 66V!!! (48V Nominal). I don't know if that's true yet or a acrtually 
> voltage metering issue. But it appears that when the generator stops the 
> invert mode kicks in and immediately shuts down due to high battery voltage. 
> I guess the inverters were coming back alive when the voltage settled to the 
> normal range. But the homeowner reports that when he manually restarts the 
> system the battery is around 54V. I'm not sure how long after the shutdown 
> this occurs.
> 
> So at this point I told him he needs to be very careful and make sure he's 
> not cooking the batteries by testing with a volt meter during charging to see 
> what's really going on.
> 
> I'm concerned because the FNDC, both GS8048s and both FM100s all report 
> abnormally high battery voltage. That suggest that the voltage is actually 
> that high. But the charger setpoints are clearly set to defaults for absorb 
> and float. I don't know why the voltage would blow past the setpoints. 
> 
> I misspoke in my initial email. He has AGS voltage start and SOC start set 
> up. 
> 
> 
> 
> 
>> On Tue, Nov 2, 2021 at 3:09 PM Jason Szumlanski 
>>  wrote:
>> I have a client (DIY) who has dual 8048's and he is starting the generator 
>> using both high load and low voltage settings with the AGS. It worked 
>> flawlessly for 9 months. Then for a couple of months when the generator shut 
>> down the lights would flicker. Eventually it started shutting down his loads 
>> completely for a couple of minutes and it would start back up automatically. 
>> Now when the generator shuts down the inverters shut down and need to be 
>> restarted manually. 
>> 
>> He said there is an error code but he never wrote it down.
>> 
>> Any ideas given the sequence of events?
>> 
>> Lead acid batteries. 20kW generator. Despite it being DIY from an online 
>> wholesaler, he did hire a licensed electrician and that electrician 
>> consulted with me a bit prior to installation, so it's a pretty good job. 
>> I'm thinking it's an internal Radian setting or fault causing this. 
>> 
>> Jason Szumlanski
>> Florida Solar Design Group
> ___
> List sponsored by Redwood Alliance
> 
> Pay optional member dues here: http://re-wrenches.org
> 
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Re: [RE-wrenches] Radian 8048's shutting down on generator stop

[Jason Szumlanski]

It's been a long time, but I'm quite certain it was landed on the Gen (AC2)
input bus. It worked fine for many months, so I can't imagine this is the
issue, but it's worth double checking.

This was a prewired dual Radian system from Wholesale Solar (or whatever
they're called now).

Jason


On Tue, Nov 2, 2021, 6:41 PM Maverick Brown 
wrote:

> Sounds like the generator is connected to AC Out terminals (AC coupling).
> This will ‘work’ to charge batteries. It will function but the Radian has
> no way to regulate battery voltage. One would typically install an AUX
> controlled AC relay on a grid tie inverter set up for AC coupling. In your
> case, make sure the generator is landed on the generator terminals, AC2.
>
> Maverick Brown
> Off-Grid Solar Commander since 2006
> *Maverick Solar Enterprises, Inc.*
> * • Solar Commander Remote Power*
>
> * • SunFlow Systems Cathodic Protection *maver...@mavericksolar.com
> 512-460-9825
>
>
> On Nov 2, 2021, at 3:46 PM, Jason Szumlanski <
> ja...@floridasolardesigngroup.com> wrote:
>
> 
> Whoa! I just got access to his OpticsRE. It says battery voltage reached
> as high as 66V!!! (48V Nominal). I don't know if that's true yet or a
> acrtually voltage metering issue. But it appears that when the generator
> stops the invert mode kicks in and immediately shuts down due to high
> battery voltage. I guess the inverters were coming back alive when the
> voltage settled to the normal range. But the homeowner reports that when he
> manually restarts the system the battery is around 54V. I'm not sure how
> long after the shutdown this occurs.
>
> So at this point I told him he needs to be very careful and make sure he's
> not cooking the batteries by testing with a volt meter during charging to
> see what's really going on.
>
> I'm concerned because the FNDC, both GS8048s and both FM100s all report
> abnormally high battery voltage. That suggest that the voltage is actually
> that high. But the charger setpoints are clearly set to defaults for absorb
> and float. I don't know why the voltage would blow past the setpoints.
>
> I misspoke in my initial email. He has AGS voltage start and SOC start set
> up.
>
>
>
>
> On Tue, Nov 2, 2021 at 3:09 PM Jason Szumlanski <
> ja...@floridasolardesigngroup.com> wrote:
>
>> I have a client (DIY) who has dual 8048's and he is starting the
>> generator using both high load and low voltage settings with the AGS. It
>> worked flawlessly for 9 months. Then for a couple of months when the
>> generator shut down the lights would flicker. Eventually it started
>> shutting down his loads completely for a couple of minutes and it would
>> start back up automatically. Now when the generator shuts down the
>> inverters shut down and need to be restarted manually.
>>
>> He said there is an error code but he never wrote it down.
>>
>> Any ideas given the sequence of events?
>>
>> Lead acid batteries. 20kW generator. Despite it being DIY from an online
>> wholesaler, he did hire a licensed electrician and that electrician
>> consulted with me a bit prior to installation, so it's a pretty good job.
>> I'm thinking it's an internal Radian setting or fault causing this.
>>
>> Jason Szumlanski
>> Florida Solar Design Group
>>
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Re: [RE-wrenches] Radian 8048's shutting down on generator stop

[jay]

You can find the temperature compensation voltage in the battery hot button. 
It might be a bad temp sensor

jay

peltz power

> On Nov 2, 2021, at 2:46 PM, Jason Szumlanski 
>  wrote:
> 
> Whoa! I just got access to his OpticsRE. It says battery voltage reached as 
> high as 66V!!! (48V Nominal). I don't know if that's true yet or a acrtually 
> voltage metering issue. But it appears that when the generator stops the 
> invert mode kicks in and immediately shuts down due to high battery voltage. 
> I guess the inverters were coming back alive when the voltage settled to the 
> normal range. But the homeowner reports that when he manually restarts the 
> system the battery is around 54V. I'm not sure how long after the shutdown 
> this occurs.
> 
> So at this point I told him he needs to be very careful and make sure he's 
> not cooking the batteries by testing with a volt meter during charging to see 
> what's really going on.
> 
> I'm concerned because the FNDC, both GS8048s and both FM100s all report 
> abnormally high battery voltage. That suggest that the voltage is actually 
> that high. But the charger setpoints are clearly set to defaults for absorb 
> and float. I don't know why the voltage would blow past the setpoints. 
> 
> I misspoke in my initial email. He has AGS voltage start and SOC start set 
> up. 
> 
> 
> 
> 
> On Tue, Nov 2, 2021 at 3:09 PM Jason Szumlanski 
>  > wrote:
> I have a client (DIY) who has dual 8048's and he is starting the generator 
> using both high load and low voltage settings with the AGS. It worked 
> flawlessly for 9 months. Then for a couple of months when the generator shut 
> down the lights would flicker. Eventually it started shutting down his loads 
> completely for a couple of minutes and it would start back up automatically. 
> Now when the generator shuts down the inverters shut down and need to be 
> restarted manually. 
> 
> He said there is an error code but he never wrote it down.
> 
> Any ideas given the sequence of events?
> 
> Lead acid batteries. 20kW generator. Despite it being DIY from an online 
> wholesaler, he did hire a licensed electrician and that electrician consulted 
> with me a bit prior to installation, so it's a pretty good job. I'm thinking 
> it's an internal Radian setting or fault causing this. 
> 
> Jason Szumlanski
> Florida Solar Design Group
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