Please read my post above and download the manual and read it as well. The warning light is dual colored, and depending upon what is wrong the light will change colors. It can only be over current or duty cycle. It's possible that a large amount of water got into the torch and temporarily shorted it and caused an over current (usually green) or it is more likely you hit the duty cycle of the machine by using it too much for too long at a time without giving it a break as it needed...especially if you were on 110V.