Customer service!
I rarely write review but this company (and unit) won me with the customer service, I was convinced my unit was faulty, turns out I'm just not great at following instruction, within 12 hour they had answered me and gave me a video specific to my trouble code and sure enough, I am cold in my living room now (the good kind of cold) I believe you win these thing with good product and above reproach customer service, this seller got them both!