I am a homeowner with no experience with these things, my heat wont come on, the fan seems to be working, and it seems to want to ignite but no flame,and im not getting any heat.Mind you its -8 degrees here at the moment. I have a Goodman GMPN060-3 gas furnace. I shut down power, cut off gas and then restarted it all. Still nothing, is there something that i can do without calling a tech. I did clean out all the dust from what i could get ot