Received the Schumacher SSC-1500A-CA about a month ago, and the first time I used it the, LED display number were not working properly. The unit worked well, but the display digits are not readable. The center horizontal bar of the digits is not lighting. Called Schumacher Customer Service, and was told that '..during the first 30 days after purchase the vendor that the unit was purchased from is responsible for warranty issues'. I called the vendor (WebCortex, Inc) multiple times, with NO ANSWER... Left messages, but have gotten NO REPLY.... Now the 30 days since I purchased the unit is up... Going to call Schumacher Customer Service, and see what happens. Hopefully they will replace the unit... If not, 'I will be back'..