Re: [RE-wrenches] Two Outback Radian 8048 fails in same week..what is likely wrong in 7+ year inverters?

[Jeremy Coxon via RE-wrenches]

I have 3 very lightly used Radian 8048’s on a shelf (they were in standby mode 
only for ~3yrs) that I’d love to find a home for if anyone has a use for them 
or the parts.

Best Regards,
Jeremy Coxon NABCEP # 091308-21
MWBE Certified




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[RE-wrenches] Radians

[Drake Chamberlin via RE-wrenches]

What vintage are you Radians? How much do you want for them? Do they use 
the Mate 3 or the 3s?


Thank you,

Drake

Drake Chamberlin
Athens Electric LLC
Ohio Electrical Contractor’s License 44810
NABCEP Certified PV Installation Professional



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[RE-wrenches] REC Twin Peak 315 watt?

[Daryl DeJoy via RE-wrenches]

If anyone has one of these laying around I'd be happy to buy it. It can be
used. It's for a client who dropped a tree a little too close to his
array Please contact me off list, thanks 🙏🏻

Daryl DeJoy
NABCEP Certified PVIP since 2006
Island Energy Storage
(207)479-2252
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Re: [RE-wrenches] Two Outback Radian 8048 fails in same week..what is likely wrong in 7+ year inverters?

[Dave Angelini Offgrid Solar via RE-wrenches]

High temperatures are a major cause of electronic equipment failures, 
contributing to more than 50% of them. A rule of thumb is that for every 
10°C increase in temperature, the failure rate of electronic components 
will double and their life will be reduced by half. This rule is based 
on the Arrhenius equation, which can be used to compare damage that 
accumulates over time at different temperatures.


 In troubleshooting a very rare failure in XW that sounds like yours, 
look for little black chunks of Mosfet chips in the power section.


Dave Angelini Offgrid Solar
"we go where powerlines don't"
   [1]https://offgridsolar1.com/ [2]  [1]
e-mail  offgridso...@sti.net
text 209 813 0060

On 2024-06-09 3:49 pm, Scot Arey via RE-wrenches wrote:

Longtime Outback user but since the experience of this group is so 
varied, I'll say 8-years (so you real old-timers don't laugh!).


Here is the scenario of two systems:

First is a full off-grid customer and we have two stacked 8048s, with 
four FM80s and a 14kw array that charges a RE2200. After a home fire 
(not related to the solar!) we got the system back on and it required 
heavy dual inverter operations to get the home going after a four-month 
hiatus. Looks like that slave inverter stopped working at end of the 
day after we re-powered and departed. He can operate with the single 
8048.


The second situation is a used 8048 I have at the Texas coast that 
powers a small duck/hunt bunkhouse. It was used system (and I'm a 
benefitting member) but worked just fine when I put in. Went down to 
check the batteries (FLA, as AGM nor lithium was in budget) and there 
was not inverter output and no indication on the MATE like an error 
code.


So my question is - what typically fails in a 8048 from old age or heat 
stress? Wanted to ask here since so many issues with Outback tech spt 
during its transition. Neither inverter is in warranty, but trying to 
field repair anything I might be able to.


I do have battery voltage past the two 175A disconnects in the GSLC. No 
"thump" I typically get when the inverter first gets battery power and 
no lights.


Any troubleshooting tips to identify the culprit part?

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Links:
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[1] http://members.sti.net/offgridsolar/
[2] https://offgridsolar1.com/___
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Re: [RE-wrenches] Two Outback Radian 8048 fails in same week..what is likely wrong in 7+ year inverters?

[Dana Orzel via RE-wrenches]

I installed a Radian 4048 for a neighbor about a year ago.  The Sw4024 was 
tired.
Typ. - checked output all good volt & Hz, then about 2 weeks later He called 
said his washer would not spin & refrigerator had died (not happy) the Rad 4048 
was only at 99 volts/leg. OB Tech told me how to dial up & it would not stick 
at 119-120vac. Replaced the power supply all good for a year now.

_
Dana OrzelGREAT SOLAR WORKS!
C - 208.721.7003  E - d...@solarwork.com
W - www. greatsolarworks.com www.solarwork.com
"Responsible Technologies for Responsible People since 1988!"

--- Begin Message ---
High temperatures are a major cause of electronic equipment failures, 
contributing to more than 50% of them. A rule of thumb is that for every 10°C 
increase in temperature, the failure rate of electronic components will double 
and their life will be reduced by half. This rule is based on the Arrhenius 
equation, which can be used to compare damage that accumulates over time at 
different temperatures.

 In troubleshooting a very rare failure in XW that sounds like yours, look for 
little black chunks of Mosfet chips in the power section.



Dave Angelini Offgrid Solar
"we go where powerlines don't"
   https://offgridsolar1.com/ 

e-mail  offgridso...@sti.net
text 209 813 0060


On 2024-06-09 3:49 pm, Scot Arey via RE-wrenches wrote:

Longtime Outback user but since the experience of this group is so varied, I’ll 
say 8-years (so you real old-timers don’t laugh!).



Here is the scenario of two systems:



First is a full off-grid customer and we have two stacked 8048s, with four 
FM80s and a 14kw array that charges a RE2200. After a home fire (not related to 
the solar!) we got the system back on and it required heavy dual inverter 
operations to get the home going after a four-month hiatus. Looks like that 
slave inverter stopped working at end of the day after we re-powered and 
departed. He can operate with the single 8048.


The second situation is a used 8048 I have at the Texas coast that powers a 
small duck/hunt bunkhouse. It was used system (and I’m a benefitting member) 
but worked just fine when I put in. Went down to check the batteries (FLA, as 
AGM nor lithium was in budget) and there was not inverter output and no 
indication on the MATE like an error code.

So my question is – what typically fails in a 8048 from old age or heat stress? 
Wanted to ask here since so many issues with Outback tech spt during its 
transition. Neither inverter is in warranty, but trying to field repair 
anything I might be able to.

I do have battery voltage past the two 175A disconnects in the GSLC. No “thump” 
I typically get when the inverter first gets battery power and no lights.

Any troubleshooting tips to identify the culprit part?





[RCMAPac2258db41e67e5f1bd14020e20e3c81]



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