My hot water heater will heat for a minute then nothing for hours, I have replace the Hi--Tstat switch twice. I have 120 volts to one side of the Hi switch now with a new switch. It will not reset to let the power go through. I jumper the switch and still no power to the element. The gas side will not work as well. The red ignition light never comes on....could the module be bad causing thid problem? This is a Suburban heater 4 years old!