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diy solar

Growatt 3000 not turning on

dajale

New Member
Joined
Nov 4, 2021
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4
I purchased a Growatt 3000W model. I connected two 12V 200AH batteries in parallel and the AC input. I connected the AC input to the house and turned the unit on. The screen remains blank and there is no response in any way, fans nothing. Do I have a bad unit? I would expect it to turn on if it’s connected to the main.
Does the battery need to be charged to turn on the unit? Should I charge the battery independently first?

Thanks for the support.
 
I had 2 12 v batteries but the where connected in parallel instead of series. Thanks for the hint. They are working now.
 
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