Our heat won't come on. The AC cooling side on thermostat works but the heat side won't come on. At first the #1 unit was all that would work on cooling and now the # 2 unit will work on cooling also,...
After I checked the basics like the breaker, and made sure I had gas my wife would have already had me on my way to Walmart or Lowes for a couple electric heaters. Once I got those going then it would be back to fixing. Someone will pick this up in a minute and have some good answers.