I picked it up from the Sungold Power distributer here in California. They claimed they "repaired it" but when I took it home and wired (mind you, I believe whole heartedly that it is wired correctly) it worked but only with PV power. The inverter was not able to use power from the Main Line but it reads the voltage, just no arrow indicator that it's using it. When the sun goes down it bleeds out the battery and becomes useless. I emailed them once again, waiting to hear back. I think they repaired the wrong problem. Anyone have any experience with this? I was guessing maybe it was the breaker on the unit but how would it be able to read the voltage if so? thx