Boiler Issues: Expert Answers Most Searched Questions
Top 5 Most Searched For General Boiler Questions UK
| Rank | General Boiler Question | Average Yearly Search Volumes |
| 1 | How much is a new boiler? | 52,800 |
| 2 | What is a combi boiler? | 43,200 |
| 3 | How much is a boiler service? | 34,800 |
| 4 | How to repressurise a boiler ? | 28,800 |
| 5 | Who qualifies for a boiler grant? | 22,800 |
As the table above shows, most people are querying the costs of repairing or replacing a boiler. When you're in need of a new boiler or for yours to be fixed - this can be daunting. Therefore, HeatingForce.co.uk's experts have tackled the most common boiler problems, as shown below.
Top 5 Most Searched For Boiler Problems Questions UK
| Rank | Boiler Issue Question | Average yearly search volumes |
| 1 | Why does my boiler keep losing pressure? | 12,000 |
| 2 | Why is my boiler making a loud vibrating noise? | 10,560 |
| 3 | Why is my boiler leaking water from underneath? | 7,080 |
| 4 | Why does my boiler keep gaining pressure? | 5,760 |
| 5 | Why does my boiler keep firing up? | 2,520 |
Heating expert Alex Ion answers most searched boiler problem questions!
Heating Expert Alex Ion talks us through what your common boiler issues actually mean and what you should do:
‘The most common boiler issue question revolves around them losing pressure. The reason for this is usually a leak. This is not necessarily a leak in the boiler itself, it could be a leak anywhere in the central heating system.
To prevent the boiler from losing pressure, you need to find the leak and fix it. Then you can top up the boiler via the filling loop, and it should operate without further problems.
The second most common boiler issue question is why a boiler is making a loud noise. The most likely reason for this is that one of the motorised components has seized, such as the pump. To make sure, check whether the pump is hot. If it’s uncomfortably hot to touch while the boiler makes a loud vibrating noise then you can safely assume that it is the pump.
Often a boiler will cease when the pump is clogged with limescale or heating sludge. Or in some cases it may be a case of wear and tear as the boiler ages.
The best course of action is to contact a Gas Safe engineer to inspect the boiler. It is likely that they will have to do a thorough clean and also potentially flush out the entire central heating system. Alternatively if the issue is down to the age of the boiler, you may have to replace it with a new one.
Another problem that seems to be queried a lot is why is my boiler leaking water. One of the explanations for this is that the pressure in the boiler is too high and the pressure release valve is releasing water from the system to lower the boiler pressure. Conversely, many ask why is my boiler gaining pressure? and this can be caused by too much pressure in the system, filler loop letting in water, or faulty pressure release components.
Our final boiler related issue question is why does my boiler keep firing up. The main reasons for this include gas valve faults in which not enough gas is allowed into the boiler, as well as gas meter problems. Whereby the regulator freezes in cold weather so the meter does not allow a sufficient amount of gas to keep the boiler going.
