[RE-wrenches] Cracked Glass...Warranty?

[Kent Osterberg]

If you don't see any sign of impact, look closely at the area in front 
of the junction box. Any discoloration is an indication that it has been 
hot in that area. This often is the case with a shorted diode. The heat 
will stress the glass and cause it to fracture or make it susceptible to 
fracture from any minor stress. The glass will usually have larger 
fragments in that area and finer fragments farther away.

A shorted diode should be warranty issue.

Kent Osterberg
Blue Mountain Solar, Inc.
www.bluemountainsolar.com


On 3/13/2012 12:21 PM, benn kilburn wrote:
> Wrenches,
> I recently inspected a system I installed in 2010, because the owner 
> commented that it appeared the frost wasn't melting off of one 
> particular module as it was from the others.  Turns out the module 
> glass is shattered.  There are no obvious (that i can see) impact 
> points, leading to the question... Why did the glass shatter?
>
> I don't want to just assume, but if there is no sign of impact, I'm 
> wondering if this could be a warranty issue?  Frame 
> expansion/contraction due to temperature swing maybe?
>
> Any experiences, thoughts or advice?
>
> Module is a Sanyo HIT N215A01
>
> Thanks,
>
> benn kilburn
> Construction Electrician (NOC7241) Solar Photovoltaic Systems Certified
> Certificate # 0007S
> DayStar Renewable Energy Inc.
> benn at daystarsolar.ca
> 780-906-7807
> HAVE A SUNNY DAY
>
>
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