Hi everyone - My Armstrong furnace (Ultra V - Tech 80 model # G1N80AU075D16B-1A) doesn't seem to want to stay lit and provide the much needed warmth on this cold morning in Feb. The furance is about a year old - I installed it myself. It will light - run a few seconds and then go out. It will then try to restart several times but will eventually stop this cycle after x number of tries. With my very limited experience with furnaces (and none with new furnaces like this) it appears to be a problem with the sensor that confirms that the furnace did light and isn't just dumping gas into the heat exchanger.
Any help would be sincerely appreciated.