Hi Wrenches, We were installing Sanyo HIT modules back in 2006-2007 and in 2014 we had a rash of bad Sanyo modules. The modules had distinct voltages below the good modules ie 50% or 75%. Sanyo at the time (now Panasonic) indicated that it was a bad diodes from a lightning strike not covered by warranty.
I finally got around to checking that out. I identified the purportedly bad diode in one module (four per module) that was performing at 75% and removed it. The diode appears to be fine using an ohm meter. Is that a valid test? Anyone else have similar findings or experiences with this? Could lightning blow apart the tab ribbons inside of the module? Thanks -- <http://www.PositiveEnergySolar.com> Taiyoko Sadewic Employee-Owner NABCEP™PV Installation Professional NABCEP™Technical Sales 3209 Richards Lane | Santa Fe, NM 87507 cell 505.570.0137 <505.699.9032> taiy...@positiveenergysolar.com <taiy...@positiveenergysolar.com> www.PositiveEnergySolar.com <http://www.positiveenergysolar.com/> <http://www.facebook.com/positiveenergysolar> <https://twitter.com/PositiveESolar> <https://plus.google.com/+Positiveenergysolar> <https://www.youtube.com/user/PositiveEnergySolar> <https://www.positiveenergysolar.com/blog/blog/> <https://www.positiveenergysolar.com/contact/refer-a-friend/> <https://www.bcorporation.net/community/sunpower-positive-energy-solar> <http://www.solarreviews.com/installers/positive-energy-solar-reviews/>
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