this may not be the place to post this but, when the last time i tryed my furnace it made a loud pop sound. and did not come on. i tryed it maybe 2 or 3 times and it seemed to get louder. i am now a little afraid of it. i would like to take it out and try and see what could be wrong. but i want to be able to put it back in. it worked good the last time i used it.