Faulty Boiler? Here's what you can do | South London Property Services
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Funny Boiler Sounds? Heres what you can do.

Heating and Boiler Cover

Funny Boiler Sounds? Heres what you can do.

Faulty Boiler? Boilers can be a tricky thing, sometimes they have a mind of their own. Sometimes they decide to start making crazy and annoying sounds. There are a few things you can try at home with your handyman cap on. Boilers can be dangerous things to mess around with so please only carry out these steps with caution. We advise you to book a professional engineer to take care of any boiler and heating related problems.

Are you local to South London? Book an engineer to come out for a visit.

Warming Message

#1 Where is the noise coming from?

The first key step to take is to identify where the sound is coming from. Sometimes this can often be misleading because the sound can also be travelling from the water system or even the heating.

It is crucial to identify if its the heating pipes, a noisy boiler or even the radiator. There are different reasons why each of these things can happen and we’ll go into this in just a moment.

The first step when faced with a noise in the system is to identify exactly where the sound is coming from. Because sounds can travel and echo through the heating and water system, it is important to first establish if it is actually a noisy boiler, or a noisy radiator or central heating pipe, each of which can have different causes.

If you are satisfied and are sure that it is coming from the boiler, we can then proceed to the following steps.

#2 Whooshing or Vibrations

Whooshing and vibrations from a potentially faulty boiler can seem quite scary at first. The cause for this can be quite simple to diagnose, as scary as this may seem there is no real influx of danger immediately. However, allowing this to persist and not paying attention to the problem can cause further damage.

If you are experiencing this, then it’s important to take immediate action on this.

2.1 – Checking the Air Filter

One of the most common problems in this scenario is actually a blocked air filter. This typically causes many faults within a boiler. If the air filter is serviceable by yourself, simply remove the filter and clear it from any build up of dirt with a dry brush or a vacuum.

This step can often require the help of an engineer. Do not take any risks whatsoever. The result of a faulty boiler. Death.

2.2 – Air Intake

Another common problem is the intake of air and this can be the cause of whooshing sounds too. It simply means that there is a blockage of air intake.

Check the external pipes on your premises to ensure that there is nothing obstructing the intake flow. If there is, remove any blockages. To check if this fixed the problem, place your hand over the vent and you will feel a difference in the amount of air that is coming in.

#3 Gurgling

Gurgling to a minimal level is not a big issue. It’s quite common, however, if it is constant and loud enough to scare you or catch your attention, it means something needs adjusting.

Commonly, this can be mistaken for the heating up of water but for now, there is no need to panic or to be concerned. If you’re afraid, please call your heating and boiler engineer. You can book an engineer here.

Gurgling can sound like this:

3.1 – Bleed the system

This step is moderately simple, in most cases, you do not need to get an engineer involved. Gurgling sounds can begin in the boiler but is actually caused by air somewhere else within the system. Apply the following steps:

How to bleed boiler - infographic

3.1 – Checking Water Pressure

If you have discovered that the water pressure is too low, this may very well be the cause of the gurgling noise problem. Your boiler will have a manometer, this is located where the pipes are connected to the boiler itself. Nowadays, modern pressure gauges will have a label or a mark of some sort with the optimal pressure level. It is advised that you have a look at the boiler manual. Increase the pressure level until it has resorted to the correct level. This may also require you topping up the water levels.

3.2 – Circulation

The noise still continuing? There is a chance that the problem is with the circulation pump and in most cases, the noise will be caused by the high level of speed. If your boiler has the option to slow it down, then do so. This could potentially resolve the issue. It’s advised that a professional comes in at this point to ensure these steps are carried out safely and accurately.

Unable to resolve your boiler problem? Book a pro
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