I have a Goodman furnace. The thermostat is telling the furnace to come on, but it does not. This happens at least twice a day. I have to turn it on by turning the furnace on and off. There is a blinking red light that flashes five times, which I do not know what that means. Please Help

If you remove your bottom and top door from the furnace, you will see a chart for the amount of flashes you see. After you find the number it will tell you the possible cause. The chart is on the inside of one of the doors.