Richard Posted May 3 Share Posted May 3 Transformer polarity error...? I've watched the Rev A/B to Rev C upgrade video at least 8 times... Connections are all correct...same as in video... Getting a transformer polarity error on power up... Connected to Wifi... Inverter says it needs a firmware update... Download succeeds... Install fails with unrecognized bios (?) error...? Quote Link to comment Share on other sites More sharing options...
Richard Posted May 3 Author Share Posted May 3 (edited) After a text message conversation with Sean, all is good... L1 and L2 needed to be reversed off of the transformer... Also had a mismatch error on second startup, but the firmware update took care of that error... I wouldn't use this as advice unless you get a confirmation from Sid or Sean... I hope it's a long time before I visit again... Edited May 3 by Richard Quote Link to comment Share on other sites More sharing options...
Sid Genetry Solar Posted May 4 Share Posted May 4 Sorry, I was completely unable to get to my computer yesterday. I'm just now trying to catch up on the sprinkling of your posts all over the forums.... Quote Link to comment Share on other sites More sharing options...
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