I wondered if anybody else had run into issues with SMA's rapid shutdown box? We turned on the system about a month ago and seem to have problems with the relays in the rapid shutdown not closing periodically. Unfortunately it is an intermittent problem so unless we're onsite at the right time, there is nothing SMA will do. Two of us have been through troubleshooting with them and the system works fine. The client has reset the disconnect a couple of times with the key at the controller. One time it worked. Another time it did not and the light on the red button stayed on.
It seems as though the connection from the array to the inverter will come back in the morning even if the disconnect box wasn't allowing it the day before. We're guessing a bad relay but haven't been able to prove it so far. Laura Conchelos Solar Gain Services Monte Vista CO 81144
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