Repairs That Might Be Needed To Stop A Whistling Furnace

Posted on: 28 December 2021

One sign of a problem with your furnace is when it makes a whistling noise. This is often associated with an air leak or pressure problem, and it may not seem like a big deal. However, besides being annoying, the sound could indicate your furnace is struggling to work and it might overheat. Parts can be damaged when a furnace overheats, and the furnace might even shut itself down to protect the equipment from damage. Here are some steps to take when your furnace is whistling.

Check The Filter

You can check the filter yourself, and this is a step you should take before calling a furnace repair company. If the filter is clogged, you can simply put a new one in, and that may solve the problem. When a filter is clogged, the furnace struggles to pull air in around the filter, and that can cause the whistling noise.

However, there is another thing to keep in mind when you check the filter. Someone may have put a whistle on your filter. This is done deliberately so the whistle alerts you to when it's time to change the filter. The whistle makes sure you change the filter before it gets so clogged that it's hazardous to your system.

Call A Furnace Repair Professional

If the filter is clean, or if you change it and the whistling doesn't stop, consider calling a furnace repair professional to track down the problem. They may need to look through the system for air leaks. This might entail checking every register in your house and looking over the ducts. If a leak in a duct isn't obvious, they may need to do a leak test on your system to find out if there's a problem with a duct leak.

Another thing the furnace repair technician may need to check is the blower to make sure it is spinning optimally. Be sure to let the repair technician know if your furnace was serviced recently since that could have something to do with the problem, too.

Make Needed Repairs

Getting rid of the whistling noise might involve reseating a register grill to stop an air leak. However, the repair technician might need to track down a duct leak and seal it. If you've just had your furnace installed or had new parts put in it, the repair technician might need to replace the ducts or replace a blower part to fix a problem with pressure in the system.

It may take some trial and error to fix the problem, but fortunately, the issue may be something simple and easy to repair. Still, just because the repair is simple, it doesn't mean you should put off stopping a furnace whistle. For example, if the problem is a clogged filter and you don't change the filter in time, your furnace could suffer from damage or operate inefficiently and drive up your electric or gas bill.

Contact a local HVAC contractor to learn more about furnace repairs.