Boiler issues can be inconvenient and worrying, but not every problem requires an immediate call to a heating engineer. Some common boiler issues can be diagnosed and resolved with a few simple troubleshooting steps. Here’s a guide to help you identify and fix minor boiler problems before seeking professional assistance.
For professional boiler servicing in Ealing, West London, Acton, Hanwell, or nearby areas, give us a call at 07402806032.
Common boiler issues and how to fix them
1. Boiler Keeps Turning Off (Boiler Cycling)
This issue is when your boiler keeps turning itself off, which can be caused by several factors such as low water pressure, a problem with the thermostat or a closed valve causing insufficient water flow.
Check your boiler’s pressure gauge. If it’s below 1, you may need to increase the pressure. If the problem persists, it may be time to call a professional like Boiler Boys London to investigate and rectify the issue.
2. No Heat or Hot Water
This is the most common boiler issue homeowners face. It could be due to a broken diaphragm and airlock, a failed motorised valve, or issues with the thermostat.
First, check your thermostat settings and the boiler pressure. If they seem alright, the problem may be more serious, and a boiler service professional should look at it.
3. Leaking and Dripping
Various issues can cause your boiler to leak or drip, including a broken internal component like a pressure valve or pump seal. Look for any visible signs of leaks around your boiler and pipework. Leaks can cause low pressure and damage your system. If you spot a leak, it’s best to turn off the boiler and call a heating engineer immediately.
4. Strange Noises
Boilers can sometimes make strange noises like whistling, gurgling, or banging. This could be due to air in the system, low water pressure, or limescale accumulations causing certain sounds.
For minor issues, bleeding your radiators can remove air in the system. However, for persistent noises, especially 'kettling', you should call a boiler service professional.
5. Radiators Not Getting Hot
If your radiators are not heating up, there could be a build-up of sludge or air in your system that's blocking the flow of hot water. You can try bleeding your radiators to remove any air. If this doesn't work, your system might require a power flush, which should be carried out by a professional.
6. Check for Power Supply Issues
Ensure your boiler is receiving power. Check the fuse box for any tripped switches and ensure the boiler’s power switch is on. Additionally, make sure your thermostat is set to the desired temperature and functioning correctly.
7. Reset the Boiler
Modern boilers often have a reset button. If your boiler isn’t working, try resetting it by following the manufacturer’s guidelines. This can resolve minor electronic glitches and restore normal function. However, if you need to reset the boiler frequently, it may indicate a deeper issue that requires professional attention.
8. Check the Boiler Pressure
One of the most frequent issues is incorrect boiler pressure. The pressure gauge should read between 1 and 1.5 bars when the system is cold. If the pressure is too low, you can top it up using the filling loop. If the pressure is too high, bleeding a radiator can help reduce it. Always refer to your boiler’s manual for specific instructions.
9. Bleed the Radiators
Cold spots on your radiators can indicate trapped air within the system, reducing heating efficiency. Bleeding the radiators removes this air, ensuring even heat distribution. Use a radiator key to open the bleed valve until water starts to flow, then close it. This simple task can often improve your boiler’s performance significantly.
Get in touch
Dealing with boiler issues can be frustrating, but many common problems have simple solutions. However, always remember that if you are not confident in performing these tasks, it's best to leave it to the professionals to ensure your safety and prevent further damage to your system.
For any boiler services in Ealing, whether it's routine maintenance or addressing these common issues, trust the professionals at Boiler Boys London. Our team of Gas Safe registered engineers is ready to provide swift and effective service. Call us today on 07402806032 to schedule an appointment
