As has happened in the past, we had no hot water, as the old Direct Energy rental heater in our basement conked out. I called and explained the matter to Direct Energy and they sent their technician within 9 hours of my call. The person immediately saw the problem - blinking red light indicating the gas heater was out and the gas sensor - and immediately replaced the fuel/gas sensor, which apparently was corroded. In my previous calls to Direct Energy, the technicians only cleaned or tried to clean the sensor, so they did not really solve the problem. We are happy that this was resolved to our satisfaction, although they should have done the sensor replacement much earlier.