This furnace worked fine one day, but would not fire the next. Thermostat would click when I turned it up, but furnace would not come on - no sound at all at furnace. Then 5-10 minutes. Later the blower would blow cold air for a few seconds. I am not the original owner of this home, but have never had any problem with this furnace. Does it sound like the pilot light? Thanks for any infol.

Karen