I have a Trane XL 80 Gas Furnace that is not working properly. The LED trouble light flashes twice repeatedly. The burners will not light but blower runs just fine. I can turn off the breaker for a few minutes (while I am checking everything else out) and turn it back on and everything starts working properly. After awhile it will be doing the same thing all over again. Anybody know anything that might be a help.

Is there a legend to the LED that describes the code being displayed?