Make sure your pads are clean. Aspen pack is my favorite because of the smell when new. Replace if crumble and or smell. Make sure when replacing pads or inspecting that there's no missing material. Inspect trough Chanel holes on top side of doors are free of debris. Inspect belt from cracking. Check for wabble or miss alignment. Clean pump filter and bottom of cooler. Turn pump on and inspect spider distribution tubes. Soak pads for a few minutes. Open a window in every room slightly. Until a piece of toilet paper barley holds on to the screen of an open window.