have a trane furnace, when i turn on, ignitor light comes on, gas clicks, blowers come on...will reach thermostat setting and then go off...next cycle, ignitor lighs come on, gas clicks and then no blower...will try 3 times then just fan. i took bottom panel off to see control board and there is one red light at the bottom that stays on. basically, my heat doesnt work. any ideas or help you could offer that I can do myself would be great...also, im a girl so nothing to technical please!!