My furnace is working but the fan never goes off on it's own. I have to turn it off at the breaker. A nice repairman came, looked it over and said the furnace needs to be replaced. A gut-level feeling of mine says I best ask someone else. But the $185. he charged for his opinion I don't want to pay again if it does need to be replaced. Of course, if it can be repaired I will gladly call someone else.