Re: [RE-wrenches] Just getting old?

2023-05-22 Thread Jerry Shafer via RE-wrenches 
Bill
You do need to verify that you also have No current, l see this quite a few
times where modules have failed just to find a shorted inverter or damaged
conduit where one wire overheats cause unknown and the cascade is they all
melt together and it's such a great short that voltage is near zero.
Just a thought with fun times
Jerry

On Mon, May 22, 2023, 12:25 PM Bill Battagin via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> I went back to this array, removed all J-box covers and tested for Voc.
> The majority of the PVs were ~ 9.5Voc, about 5 were ~19 Voc, 3 were 0
> (that's zero) Voc .  The diodes are in an encapsulant.  The label says Voc
> = 22V. Another array of Mitsubishi panels takes a dive.
>
> Anybody have contact info for them or recent experience with
> their warranty?
>
> Thanks,
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.(shipping)
> 5575 Genesee Rd. (USPS, UPS)
> Taylorsville, CA 95983
> 530.284.1925 Office/ 530.258.1641 Cell
> CA Lic 874049
> Solar powered since 1982
> On 5/17/2023 10:25 PM, Darryl Thayer via RE-wrenches wrote:
>
> Was the inverter connected at the time of testing?  If so I suspect the
> inverter is loading the solar array below Vmp
>
> On Wed, May 17, 2023 at 11:23 PM frenergy via RE-wrenches <
> re-wrenches@lists.re-wrenches.org> wrote:
>
>> Wrenches,
>>
>>  I've got a call from a customer that said their (my
>> install) 17 year old GT system went dead. Basic stats: 23, Mitsubishi
>> PVMF120EC3, label says V mpp= 17.6V and Voc = 22 V; top-of-pole; SMA
>> SB3800U. Its one string of 23 PVs.  Full sun, 75 degrees ambient during
>> testing. When I checked DC voltage at the inverter landings I got ~23-29
>> volts (fluctuating) same at the input side of the DC switch.  These
>> panels have the old gasketted 4-screw covered J-boxes and screw
>> terminals inside, I removed the covers from three panels and got 9.5
>> volts at the each of the panels' screw terminals,  all the wiring
>> outside the boxes checks out.
>>
>>  The system had been functioning normally 3 weeks prior. I
>> could check voltage at more panels I guess.  Ideas?
>>
>> Bill
>>
>> Feather River Solar Electric
>> Bill Battagin, Owner
>> 4291 Nelson St.(shipping)
>> 5575 Genesee Rd. (USPS, UPS)
>> Taylorsville, CA 95983
>> 530.284.1925 Office/ 530.258.1641 Cell
>> CA Lic 874049
>> Solar powered since 1982
>>
>>
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Re: [RE-wrenches] Just getting old?

2023-05-22 Thread Chris Daum via RE-wrenches 
We haven’t sold these modules, but here’s some information:  
https://www.mitsubishielectricsolar.com/warranty-information/
 
Good luck!
 
Chris Daum
Oasis Montana Inc.
406-777-4309 or 4321
406-777-4309 fax
www.oasismontana.com <http://www.oasismontana.com/>  
 
 
From: RE-wrenches  On Behalf Of Bill 
Battagin via RE-wrenches
Sent: Monday, May 22, 2023 1:25 PM
To: Darryl Thayer via RE-wrenches 
Cc: Bill Battagin 
Subject: [RE-wrenches] Just getting old?
 
I went back to this array, removed all J-box covers and tested for Voc.  The 
majority of the PVs were ~ 9.5Voc, about 5 were ~19 Voc, 3 were 0 (that's zero) 
Voc .  The diodes are in an encapsulant.  The label says Voc = 22V. Another 
array of Mitsubishi panels takes a dive.
Anybody have contact info for them or recent experience with their 
warranty?
Thanks,
Bill
Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982
On 5/17/2023 10:25 PM, Darryl Thayer via RE-wrenches wrote:
Was the inverter connected at the time of testing?  If so I suspect the 
inverter is loading the solar array below Vmp
 
On Wed, May 17, 2023 at 11:23 PM frenergy via RE-wrenches 
mailto:re-wrenches@lists.re-wrenches.org> > 
wrote:
Wrenches,

 I've got a call from a customer that said their (my 
install) 17 year old GT system went dead. Basic stats: 23, Mitsubishi 
PVMF120EC3, label says V mpp= 17.6V and Voc = 22 V; top-of-pole; SMA 
SB3800U. Its one string of 23 PVs.  Full sun, 75 degrees ambient during 
testing. When I checked DC voltage at the inverter landings I got ~23-29 
volts (fluctuating) same at the input side of the DC switch.  These 
panels have the old gasketted 4-screw covered J-boxes and screw 
terminals inside, I removed the covers from three panels and got 9.5 
volts at the each of the panels' screw terminals,  all the wiring 
outside the boxes checks out.

 The system had been functioning normally 3 weeks prior. I 
could check voltage at more panels I guess.  Ideas?

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982


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Re: [RE-wrenches] Just getting old?

2023-05-22 Thread Dave Angelini Offgrid Solar via RE-wrenches 


Bill, I remember the warranty was not great and the ones I had 
experience were not top Tier. I am thinking dumb looks are still free 
and a Seventeen year old installation is going to be more free time for 
you. I hope I am wrong, good luck!


Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail  offgridso...@sti.net
text 209 813 0060

On 2023-05-22 12:24 pm, Bill Battagin via RE-wrenches wrote:

I went back to this array, removed all J-box covers and tested for Voc. 
 The majority of the PVs were ~ 9.5Voc, about 5 were ~19 Voc, 3 were 0 
(that's zero) Voc .  The diodes are in an encapsulant.  The label says 
Voc = 22V. Another array of Mitsubishi panels takes a dive.


Anybody have contact info for them or recent experience with their 
warranty?


Thanks,

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982

On 5/17/2023 10:25 PM, Darryl Thayer via RE-wrenches wrote:

Was the inverter connected at the time of testing?  If so I suspect the 
inverter is loading the solar array below Vmp


On Wed, May 17, 2023 at 11:23 PM frenergy via RE-wrenches 
 wrote: Wrenches,


I've got a call from a customer that said their (my
install) 17 year old GT system went dead. Basic stats: 23, Mitsubishi
PVMF120EC3, label says V mpp= 17.6V and Voc = 22 V; top-of-pole; SMA
SB3800U. Its one string of 23 PVs.  Full sun, 75 degrees ambient during
testing. When I checked DC voltage at the inverter landings I got 
~23-29

volts (fluctuating) same at the input side of the DC switch.  These
panels have the old gasketted 4-screw covered J-boxes and screw
terminals inside, I removed the covers from three panels and got 9.5
volts at the each of the panels' screw terminals,  all the wiring
outside the boxes checks out.

The system had been functioning normally 3 weeks prior. I
could check voltage at more panels I guess.  Ideas?

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982

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[RE-wrenches] Just getting old?

2023-05-22 Thread Bill Battagin via RE-wrenches 
I went back to this array, removed all J-box covers and tested for Voc.  
The majority of the PVs were ~ 9.5Voc, about 5 were ~19 Voc, 3 were 0 
(that's zero) Voc .  The diodes are in an encapsulant.  The label says 
Voc = 22V. Another array of Mitsubishi panels takes a dive.


            Anybody have contact info for them or recent experience 
with their warranty?


Thanks,

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982

On 5/17/2023 10:25 PM, Darryl Thayer via RE-wrenches wrote:
Was the inverter connected at the time of testing?  If so I suspect 
the inverter is loading the solar array below Vmp


On Wed, May 17, 2023 at 11:23 PM frenergy via RE-wrenches 
 wrote:


Wrenches,

         I've got a call from a customer that said their (my
install) 17 year old GT system went dead. Basic stats: 23, Mitsubishi
PVMF120EC3, label says V mpp= 17.6V and Voc = 22 V; top-of-pole; SMA
SB3800U. Its one string of 23 PVs.  Full sun, 75 degrees ambient
during
testing. When I checked DC voltage at the inverter landings I got
~23-29
volts (fluctuating) same at the input side of the DC switch. These
panels have the old gasketted 4-screw covered J-boxes and screw
terminals inside, I removed the covers from three panels and got 9.5
volts at the each of the panels' screw terminals,  all the wiring
outside the boxes checks out.

         The system had been functioning normally 3 weeks
prior. I
could check voltage at more panels I guess.  Ideas?

Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982


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Re: [RE-wrenches] Just getting old?

2023-05-17 Thread Darryl Thayer via RE-wrenches 
Was the inverter connected at the time of testing?  If so I suspect the
inverter is loading the solar array below Vmp

On Wed, May 17, 2023 at 11:23 PM frenergy via RE-wrenches <
re-wrenches@lists.re-wrenches.org> wrote:

> Wrenches,
>
>  I've got a call from a customer that said their (my
> install) 17 year old GT system went dead. Basic stats: 23, Mitsubishi
> PVMF120EC3, label says V mpp= 17.6V and Voc = 22 V; top-of-pole; SMA
> SB3800U. Its one string of 23 PVs.  Full sun, 75 degrees ambient during
> testing. When I checked DC voltage at the inverter landings I got ~23-29
> volts (fluctuating) same at the input side of the DC switch.  These
> panels have the old gasketted 4-screw covered J-boxes and screw
> terminals inside, I removed the covers from three panels and got 9.5
> volts at the each of the panels' screw terminals,  all the wiring
> outside the boxes checks out.
>
>  The system had been functioning normally 3 weeks prior. I
> could check voltage at more panels I guess.  Ideas?
>
> Bill
>
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.(shipping)
> 5575 Genesee Rd. (USPS, UPS)
> Taylorsville, CA 95983
> 530.284.1925 Office/ 530.258.1641 Cell
> CA Lic 874049
> Solar powered since 1982
>
>
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[RE-wrenches] Just getting old?

2023-05-17 Thread frenergy via RE-wrenches 

Wrenches,

            I've got a call from a customer that said their (my 
install) 17 year old GT system went dead. Basic stats: 23, Mitsubishi 
PVMF120EC3, label says V mpp= 17.6V and Voc = 22 V; top-of-pole; SMA 
SB3800U. Its one string of 23 PVs.  Full sun, 75 degrees ambient during 
testing. When I checked DC voltage at the inverter landings I got ~23-29 
volts (fluctuating) same at the input side of the DC switch.  These 
panels have the old gasketted 4-screw covered J-boxes and screw 
terminals inside, I removed the covers from three panels and got 9.5 
volts at the each of the panels' screw terminals,  all the wiring 
outside the boxes checks out.


        The system had been functioning normally 3 weeks prior. I 
could check voltage at more panels I guess.  Ideas?


Bill

Feather River Solar Electric
Bill Battagin, Owner
4291 Nelson St.(shipping)
5575 Genesee Rd. (USPS, UPS)
Taylorsville, CA 95983
530.284.1925 Office/ 530.258.1641 Cell
CA Lic 874049
Solar powered since 1982


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