If your boiler keeps switching off, it can be frustrating, especially when you rely on it for heating and hot water. A boiler that repeatedly shuts down is not only inconvenient but could be a sign of an underlying issue that needs professional attention. While some causes are simple to fix, others may require the expertise of a Gas Safe registered engineer to ensure the safety and efficiency of your system.
Why Does My Boiler Keep Switching Off?
There are several reasons why a boiler might keep switching off. Some issues can be easily fixed, while others may require professional intervention. It’s important to identify the cause early to avoid further damage and unnecessary repair costs.
Common Causes of a Boiler That Keeps Switching Off
- Low Water Pressure
If the pressure in your boiler is too low, it can cause the system to shut down automatically to prevent damage. This is a common issue that can often be fixed by topping up the pressure using the filling loop. If the problem persists, there may be a leak in the system. - Thermostat Issues
A faulty or incorrectly set thermostat can cause your boiler to keep turning off. If the thermostat is reading the wrong temperature, it may shut the boiler off prematurely. - Blocked or Closed Valves
If the heating system’s valves are blocked or closed, it can prevent water from circulating correctly, which might cause the boiler to overheat and shut down. - Pilot Light Issues
If your boiler uses a pilot light, a malfunctioning or extinguished pilot light can cause the boiler to turn off. A faulty thermocouple or gas supply issue could be to blame. - Overheating
Boilers are designed to shut off if they overheat, as a safety measure. Overheating can be caused by a variety of issues, including a blocked heat exchanger, low water flow, or a faulty pump. - Airlocks or Pump Failure
Airlocks in the system can stop the water from circulating correctly, causing the boiler to overheat or malfunction. Similarly, a failed pump can cause similar problems.
What to Do if Your Boiler Keeps Switching Off
If your boiler keeps switching off, here are a few things you can check or do before calling in a professional:
- Check the Pressure: Make sure your boiler’s pressure is within the recommended range (usually between 1–1.5 bar).
- Reset the Boiler: Try resetting the boiler using the reset button, which can sometimes clear the issue.
- Check the Thermostat Settings: Ensure the thermostat is correctly set and not faulty.
- Look for Leaks: Check your system for any visible leaks that could be lowering pressure.
However, if these simple checks don’t resolve the issue, it’s time to call in a professional to identify the root cause.
Professional Boiler Repairs in Bury, Tottington and Ramsbottom
At AB Plumbing and Maintenance, our Gas Safe registered engineers are experts in diagnosing and repairing boilers that keep switching off. We offer reliable and affordable solutions for homeowners in Bury, Tottington, and Ramsbottom. Whether it’s low water pressure, a thermostat fault, or a more complex issue, we’ll ensure your boiler is running smoothly and efficiently again.
Call us today on 01204 888255 or fill out our contact form to arrange your boiler repair and ensure your system stays safe and reliable all year round.
