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If your gas boiler keeps turning off, it can be a very frustrating experience. There could be a number of reasons why your boiler is switching off, ranging from a simple issue with the thermostat to a more complex problem with the boiler itself. It's important to identify the cause of the problem so you can take the necessary steps to fix it. In this article, we'll discuss some of the most common reasons why your gas boiler keeps turning off, as well as how to troubleshoot and fix the issue.

The first thing to check is the thermostat. If the thermostat is set too low, the boiler will switch off when it reaches the desired temperature. It's also possible that the thermostat is malfunctioning, in which case it may need to be replaced. You can also check the pressure in the boiler, as a low pressure can cause the boiler to switch off. If the pressure is too low, you may need to top it up with water.

Another possible cause of your boiler switching off is a blocked or faulty diverter valve. A diverter valve regulates the flow of hot water from the boiler to the radiators. If the valve is blocked or faulty, it can cause the boiler to switch off. You may need to have the valve replaced if it's faulty.

It's also possible that the boiler itself is malfunctioning. If your boiler is old or has not been serviced in a while, it may be time to have it inspected by a qualified engineer. They can check for any underlying issues that may be causing the boiler to switch off. If any problems are found, they can advise you on the best course of action.

Finally, it's possible that the boiler is being overworked. If your boiler is used too frequently, it can cause it to switch off. If this is the case, you may need to reduce the amount of hot water you are using, or you may need to upgrade your boiler to one that is more powerful.

If your gas boiler keeps turning off, it's important to identify the cause of the problem. By following the steps outlined above, you should be able to troubleshoot the issue and take the necessary steps to fix it. If the problem persists, it's best to have your boiler inspected by a qualified engineer.