My new Humsure unit arrived in a visual damaged box, when I removed my unit out, I noticed one of the wheels was slightly damaged as well. Due to the sever heat forecast for the week I kept the unit, plugged it up and it cooled wonderfully for 2 days, after that when I tried to power it up, it flashed a message that showed "LC". I immediately referred to my manual to try and troubleshoot the message and there was no such image of the flashing "LC". I tried to locate a customer service or support phone %23 and none was listed! It had an email address only which was very difficult (for me) to navigate through. So, at this point I'm truly displeased at my purchase and would not recommend it to others! I'm also still waiting for an email response from Humsure and to date no reply has been made and its going on a little over a week now!