A system for detecting a leak in a condensate generating device, the system including a pH sensor configured for measuring the pH of a condensate of the condensate generating device; and a controller operably connected to the pH sensor, the controller configured for measuring a rate of pH change over time of the condensate and a pH level of the condensate, wherein if the rate of pH change over time is greater than the pre-determined rate of pH over time and the pH level is greater than the pre-determined pH level, a leak in the condensate generating device is determined to have occurred.