Before making the AC .Pls check that PO model correctly or not . if installed by 2016 model , PO which was received had to be named by “2016” , not “2015-2016”! (2015-2016 is Temporary PO, if we have already issued Temporary PO to you , pls wait us to cancel those PO first ,and then we will issue the correct model 2016 for you). Pls check the details before submit the AC !( if not check the details before AC came, the model does not correspond to the SSI , We cannot solve the PO problems , because it will be all your resbonsibilities!