Why Is My Heater Making Strange Sounds?

There is a common misconception that people who live in the desert are hot all of the time, or at least comfortably warm. This really isn’t the case, obviously, as anyone that has lived there for a winter or two can tell you. Of course, the desert climate doesn’t have the coldest winters in the country, but nighttime temperatures do drop down to the 50s or below. Don’t let the fact that the weather is warming up a bit more consistently lull you into false confidence in your heating system.

Late-season heating repairs are fairly common. It only makes sense that the end of the season, after a few months of service, is when heaters are in their roughest condition, right? While the end of the heating season may be in sight, you should still address any problems that you may encounter with your heater as soon as possible. This includes any odd sounds that your heater may start making.

Strange Sounds Are Not Insignificant

We get it—odd AC noises can be unsettling. But don’t overlook strange heater sounds either. It’s not just about comfort; safety is at stake too.

If You Hear Squealing and Screeching

A worn belt in the blower motor might be causing the issue. It’s a simple fix, emphasizing the importance of prompt service. Delaying could result in a snapped belt, leaving you without forced air until replaced. This problem could impact your AC too if it shares a blower with your heater. Additionally, insufficient lubrication on system bearings might be the cause.

If You Hear Rattling and Banging

A more serious problem may be affecting the blower motor or assembly. Rattling suggests a loose component, while banging or clanging could indicate a misaligned blower. Ignoring these issues, even if your system still works, increases the risk of further equipment damage. Addressing it promptly is crucial.

If You Hear a Clicking Sound

You might be dealing with an electrical issue. While occasional clicking during system cycles is normal, persistent clicking could indicate a problem with a relay or its electrical control. It’s worth checking to ensure everything is functioning correctly.