My Goodman furnace was working just fine the other day, but now I can hear it trying to start up but nothing happens. The cold air works just fine. It has no pilot light, works with internal ignition. I've done what the maunal suggests to check before calling someone out but nothing has changed. Right after I lost my heat for the house, I lost the hot water and my burners to the range won't light. They snap but no flame. Is this strickly a gas issue or something else. Gas company not open due to holiday. Hope someone can help.