5 of the Most Common Boiler Issues

The boiler is one of those household items that we like to forget about. But even the best behaved boiler has occasional problems, so let’s look at five of the most common.

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1. Boiler Not Producing Hot Water or Heat

This often happens when boilers are put back to work after the summer. The first thing to check is that the water pressure is correct. Repressurising the system may involve adding more water to the system. Your manual will show you how to do this. Then check that the thermostat hasn’t accidentally been turned down.

If it’s not either of these things, you are probably going to have to call a Gas Safe engineer to take a look at the boiler.

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2. Strange Noises

Does you boiler gurgle to itself? Or whistle? Or bang? These are quite common complaints, and they can be caused by air in the system or low water pressure. But if the pump is going, that can also produce banging noises in the radiators. So you may be better calling a gas engineer before the pump fails.

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3. Drips and Leaks

These may look minor, but don’t ever try to repair the boiler yourself. It’s likely that one of the internal parts such as a seal or a pressure valve has worn out or corroded. This is definitely a case where you should get a professional opinion from a qualified gas engineer, as recommended by Gas Safe. These problems can sometimes be caused by an incorrectly fitted boiler, which could be dangerous.

4. Pilot Light Keeps Going Out

There are several reasons this could happen, and it’s worth checking that there are no gas supply problems first. Try any other gas appliances, such as fires, to see if they are working. Follow the instructions in your owner’s manual for relighting the pilot light. If it continues to go out, you’ll need to call a Gas Safe engineer.

5. Pressure Going Down

To check whether the pressure is too low, look at the gauge. If the reading is below “1”, the pressure is probably too low. Check for leaks and try to repressurise the system. But if you don’t know how to do this, definitely call a Gas Safe Engineer.