A programmable thermostat comes in handy for the changing of seasons and is a great way to save on energy costs. If your home thermostat is giving you trouble, get a home service pro to sort it out and put your mind at ease.
Mark checked on the electrical wiring relating to the furnaces to insure that the furnaces are functioning efficiently with respect to one another.
Minor adjustments were made and both furnaces are functioning properly.
Kale suggested that the wiring should be examined by...