Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not good

I bought this for our boat. First it blew a fuse. I could not find any where what size fuse to to put in it. Called their support line and got the answer. Then the plug keeps coming out of the adapter. Bought a different plug and wired it up, worked for a few days and now it does not cool or heat? It did at first with the new plug. I would not buy this unit ever again.