A faulty boiler is never good news. It can disrupt the temperature of your property and your hot water supply. Whilst you might be able to cope with a broken boiler for a bit while it’s warm, you should get it fixed as quickly as you can.
If your boiler isn’t working properly, it’s a good plan to contact an engineer. They can fix problems competently and efficiently and can also offer you reliable advice.
However, if you’re having boiler issues there are also things that you can do to help yourself.
Having a look at the problem might mean that you fix it and don’t have to speak to an engineer. Or you could diagnose the issue and reduce the amount of time that you need to pay an engineer for. At worst you will be aware that there’s a problem and can contact a professional quickly.
To help you determine if you have boiler problems and get them repaired, we’ve come up with 7 common boiler issues and how to fix them.
1. Your boiler keeps shutting off
If your boiler keeps shutting off there could be lots of reasons why. You may have low water pressure, thermostat difficulties or a frozen condensate pipe. Or you might have a broken pump or air in the system.
To resolve this issue, try bleeding your radiators to remove any air in your heating system. Or if it’s chilly, try pouring hot water over your outside condensate pipe to thaw any frozen bits. If your water pressure’s strangely low, get in touch with your supplier to check if there is any local work going on.
2. The thermostat is not operating correctly
If your thermostat isn’t operating correctly, it might be old or faulty. Or your energy supply may not be on or your clock or timer settings could be incorrect.
Before you assume that your thermostat’s broken, check that your power supply is on. Also, try having a look at your thermostat clock and timer settings to check they haven’t been disrupted by a clock change or power cut.
3. Your boiler keeps losing pressure
If you have a pressurised system, it may repeatedly lose pressure. This might be because you have a water leak or there’s a fault with the expansion vessel.
Your boiler manual will probably have instructions on how to re-pressurise it. If it does and you’re feeling confident, try re-pressurising it yourself.
4. The pilot light keeps going out
If your boiler’s pilot light keeps going out, it is probably due to a faulty thermocouple or broken seals.
If you have an issue with your pilot light, you can’t do very much yourself. We recommend that you ask a professional to take a look.
5. Your boiler’s leaking or dripping
There is a number of reasons why your boiler could be leaking or dripping. It might be that your boiler has broken parts or loose internal connections.
This is another problem that is hard to sort out yourself. If you notice your boiler leaking or dripping, contact a boiler engineer.
6. Your boiler or central heating is noisy
A noisy boiler tends to be caused by ‘kettling’. This is when there’s a limescale build-up in the heat exchanger. Whistling, banging and gurgling pipes are normally triggered by an accumulation of limescale or air in the system.
To sort out these problems, try bleeding your radiators. This should dislodge limescale and air from your system. You might also need to ask an engineer to power flush your pipes.
7. Your radiators aren’t functioning properly
If your radiators are hot at the bottom and cold at the top, this implies that the hot water in them is not circulating effectively. This could be due to rust in the pipes, a fault with the pump or an accumulation of air in the system.
Firstly, try bleeding your radiators. This can help to remove any air in the system. If this doesn’t work, you might need an engineer to power flush them.
So if you have a boiler fault, there is a number of things that you can do that might fix it. Examining your boiler when you notice any problems could help to diagnose and potentially fix it. Remember, if you come across something you’re unsure about or are worried you might damage your boiler even more, speak to a registered boiler engineer. They will have the experience and skills to help you.