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Most of the time, we hardly pay attention to the way our boiler works. As long as the temperature and hot water requirements in our home are met, we won’t even give the boiler a second thought, unless it starts emitting strange noises. Now noises can occur even when the boiler is working fine. But, you’ll have to get up and take note if your system becomes extremely loud as this is something that you cannot ignore.

So why is your boiler making noises and how can you fix it?

Let’s take a closer look.

Boiler Error Codes

Modern boilers have inbuilt digital displays that showcase various boiler error codes. Before you waste time figuring out what the problem is, go through the product manual first and familiarise yourself with the error codes. This should help save you valuable time. If you don’t have a hard copy of the manual, you can look it up online for the make and model you have.

However, not all problems will display error codes, which is why the following tips will come handy.

Gurgling Noise from the Boiler

Gurgling noise emanating from the boiler is usually no cause for concern. However, if this gurgling becomes loud and fairly constant, it’s a sign that something needs to be adjusted.

Here are a few things that you can try on your own to eliminate the gurgling noise:

● Bleed your heating system

  1. Open all the radiator thermostats and blast the heating to maximum for a good 10 to 15 minutes with the radiators on.
  2. Now, turn off the circulation pump and let the radiators cool down. This should take about 30 to 60 minutes.
  3. Using a bleed screwdriver or key, bleed the radiator closest to the boiler until trapped water is released.
  4. Repeat this process with every radiator and now turn the boiler on while checking the water pressure.

If you’re not sure how to go about bleeding the system or face any difficulty, call professional heating engineers from Hunsbury Heating at once for assistance.

● Check the Water Pressure

Low water pressure could be the reason behind the gurgling noises. Your boiler has a pressure gauge located where the pipes connect to the boiler. The correct pressure level will be marked on most modern pressure gauges. But, if need be, you can always take a look at the manual. If the water pressure is too low, then increase the pressure until it reaches the specified level. You might have to top up the water levels for this.

● Check the Circulation Pump

If the gurgling noise still persists after bleeding the system and checking the water pressure, it is quite possible that the problem is with the circulation pump. If the pump is operating at a high speed, it causes loud gurgling noises. If the boiler has the option to crank the speed down, it may eliminate the noise. However, it’s preferable for a trained and Gas Safe registered engineer to perform this task.

Vibrating or Whooshing from the Boiler

A boiler vibrating excessively while emitting whooshing sounds can be worrisome. But the reason behind it is quite easy to identify and solve. Rest assured that this poses no immediate threat whatsoever, but if you don’t attend to it soon, it might take a turn for the worse.

Here’s what you need to do…

● Check the Air Flue

Blockage in the air flue is the most common cause of loud whooshing noise in the boiler. Take a look at the external pipe installed in your property to ensure that there’s nothing obstructing it. In case there are any debris and fluff, get rid of them. To ensure that everything is working well, place your hand over the vent. You should be able to feel the air movement within.

● Check the Air Filter

One of the most common causes behind boiler noises is a blocked air filter. You can remove the air filter and clean away the debris with a dry brush or vacuum cleaner if its user-serviceable. Although, in most cases, you might have to employ the expertise of professional help to get this done.

Whining or Buzzing Noise Coming from the Boiler

If your boiler emanates a whining or a buzzing noise from within, you should be concerned. The whining and buzzing can typically be attributed to:

  • Worn out Pump Bearing
  • Vibrating Fans
  • Defective Burner

These issues have to be diagnosed and addressed only by qualified and registered Gas Safe Engineers from Hunsbury Heating. In order to prevent further damage, get these issues fixed sooner rather than later.

Be Safe

Keep in mind that you should carry out checks on your boiler that are routine in nature; something that the manual advises you to do. These tasks will be simple involving areas that won’t require you to use any special tools or access concealed parts of the system.

For checks outside of your expertise, call Gas Safe Registered engineers to ensure safety.

At Hunsbury Heating, our engineers are properly accredited with extensive training in boiler maintenance.

Get in touch with us today for any boiler-related concerns you may have.