In 2002 I purchased two KC 70 panels
for our sailboat Slacker. This year I noticed that the output had fallen of sharply. After removing both panels
I discovered what looked like rust on the foil junctions under the glass. Hum, could be the problem. We took the panels back to the states at the end of our cruising season in Mexico
and contacted Kyocera's warranty department by email
I was told that they had had a manufacturing problem with some of their larger panels in 2002 but had not seen any problems with the KC 70's. Regardless, they ask me to send in some pictures along with a claim form. The person I dealt with was Amie Ebert ,who runs their warranty department in Scottsdale AZ. She couldn't of been more helpfull. Less than 10 days after sending the pictures and warranty form to her I had two new KC 85 panels delivered to my door. No need for followup questions or constant emailing to check the status. Great customer service! They even included a pre paid
UPS return slip to send the old panels back.
Needless to say, I am very happy.