boiler noises

Understanding the Boiler Noises

Boilers are essential to keep heating at home. When they are at their best, boilers run quietly and smoothly. And since they are usually in garages and basements, you won’t even notice that they are there. However, when something goes wrong, you’ll definitely hear disturbing boiler noises.

Different Types of Boiler Noises

To better understand your boiler, here are the common noises you may hear in normal and concerning situations.

Normal Boiler Noises and Sounds

  1. Quiet Whirring

A boiler will make noise when it is heating up, which is not abnormal. You can hear it whirring while it is warming up. The sound is usually quiet, but sometimes you may hear a loud “hissing” or “rushing” noise. This noise will usually stop once the boiler is on.

If you still hear this noise even after the boiler is already running, you can call a professional to check on your boiler or gas furnace.

  1. Deep Rumbling

Deep rumbling is very common in the morning when you are about to go to sleep. If there is a sudden drop in temperature or the boiler starts making noises when it has already been running, then you need boiler repair.

As the boiler is heating your house, the gas furnace’s fan motor is working to circulate air throughout the house. The fan motor may also be responsible for the deep rumbling noise. You can call the boiler repair if something is wrong with the fan.

  1. Quiet Clicking

When you first turn on the boiler, there will be a series of clicks that you can hear. These clicks do not mean that there is anything wrong. The clicking is your boiler’s way of letting you know it is working.

Suspicious Boiler Noises

  1. Whistling

Whistling is the sound of air being pushed out of the exit or steam pipe. The noise usually sounds like the whistle of a steam train. While it may not be a sign of anything serious, your boiler repair can check on your system to see if everything is in good condition.

  1. Gurgling

Gurgling sounds are a clear sign of something wrong. It happens when the pump is blocked or the drain valve has been left open. The gurgling sound is dangerous, and you should immediately call your boiler service to have it checked.

  1. Grinding

Grinding is one of the most dangerous sounds you can hear from your boiler. It is an indication that your system is having problems. If you hear this sound, you should call your boiler service immediately.

  1. Banging

If you hear continuous banging, your pump may be struggling to drive water through your system. This is an indication that there is a problem with your pump.

  1. Drilling or Pinging

There are times when you can hear drilling or pinging sounds. This sound may indicate that there is something problematic with the air blower. If the air blower has not been cleaned regularly, it could be clogged. If this is the case, the components of your system are not making proper connections and rubbing against each other.

Boiler Noises: Final Thoughts

Noticing any suspicious sounds from your boiler system? Do not reply on the sound going away in its own and call a commercial HVAC technician right away.

As they say, prevention is better than cure. You should always keep your boiler maintained or checked by a professional to avoid any boiler problems. So if you hear your strange boiler noises, contact your commercial HVAC company right away. For boiler maintenance and repair, contact Bay Area Mechanical today. We specialize in the installation, servicing, and repair of commercial and industrial boilers and other HVAC systems. Contact us today for more information on proper boiler noises and sounds.

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