Your heater can’t call out to you and say, “Excuse me, I think there’s a problem. I don’t feel so well.” But it can give you some signals, and you should listen well when you hear them. Ignoring an odd heater sound probably means ignoring a need for repair, and the longer you postpone a repair, the greater the chance that the problem will get worse and the repair will be more expensive.
Any sound your heating system makes is cause for concern. Listen when your heater is working well, familiarize yourself with the hum and whoosh of proper heater operation, and you’ll be able to tell when something is different. One common heater noise that definitely indicates a problem is rattling. What could be causing that? We’ll help you figure it out.