I am very disappointed in having to work this hard

Product did not work. Plug it in an nothing happens. I bought this for my son as a Christmas gift. His car was in the shop for an extended period of time. Once he got it back he was excited to put this in his car. As I said, nothing happened, no air, no heat. My husband and I are both engineers so we tried all the setting, in all of our cars and nothing ever worked. The product claims has a one year warranty. I wrote to the company to request a replacement. I have received a response and will try to exchange it. Seems like a simple product and it should have easily worked.

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