Furnace Problems

This is not the time of the year to have furnace problems but we did. I noticed the furnace was running but the blower didn't come on and there was no heat. It turned out a gob of dust got into a fan that triggered everything and the plumber cleaned it out. Then it did it again today. We turned off the furnace and waited a bit and turned it on again. They say that resets the computer and now it is working again. We are very thankful for that as the service calls are a terrible expense.