We tend to get a lot of furnace repair calls this time of year, which is actually a positive thing. People in the area have had good cause to run their heaters already, which can give them an idea if anything’s wrong. And spotting those problems now gives you a chance to get the issue repaired before fall turns to winter, and the weather gets cold enough to demand serious use of your heating system. If you suspect a problem with your furnace—anything marked as out-of-the-ordinary—you should turn it off and call in a repair service immediately.
Having said that, not all furnaces are the same and some require different methods to repair. Gas furnaces, for example, operate according to different principles and thus require different skills to address. Make sure the repair service you call has the skills necessary to handle whatever the issue might be.