We bought replacement Enermax coolers and they also failed. The models, time of purchase and sellers varied, so it wasn't a batch from a single retailer. Yes, I'm in contact with Enermax to try and resolve this but it's difficult to imagine investing more time, effort and money into anything from them. I don't want to get more replacements and have to spend time installing them, monitoring temperatures every week and worrying that they will fail after 60 days. I realize these would be replacements directly from Enermax (and not a retailer) but it means we have to install some other cooler to temporarily replace the Enermax and then go through the whole thing again when the new units arrive. Even if Enermax can guarantee they will work, it's becoming very expensive for us to keep doing this.