Friends:
I learned something yesterday about the SMA 22 series string inverters: I have a client that experienced an arc-fault shutdown. I tried to reset the error condition by following the procedure in the manual. This involves shutting down the inverter and then knocking on the front panel during re-start when directed. I had no luck. Techs support said to knock harder. I knocked so hard my knuckle started bleeding. Tech support said: sometimes these inverters get “stuck” and you need to connect with a speedwire device to unstick them. The speedwire is no longer made but I did find one to purchase for a little over $200. I have the same inverter at home so I practiced hooking the device up to my inverter. I had some problems so I called tech support and spoke to a different person. He said I don’t need a speedwire, I just need to knock harder with the back of a screwdriver in the correct spot. I went the location with the failure and using a screwdriver tapping vigorously just to the left of the display I got the unit to reset. I am keeping the speedwire because I am paranoid I might need one in the future and not be able to procure one. If anyone wants to borrow the thing, let me know. William Miller Solar 17395 Oak Road, Atascadero, CA 93422 805-438-5600 www.millersolar.com CA Lic. 773985
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