Top 5 Most Typical Boiler Problems

1. No Heat or Hot H2O

Prospective causes consist of broken diaphragms and airlocks, failure of motorised valves, issues with the thermostat or low water levels. A good place to start is to check if your boiler is not working because of a problem with boiler pressure or your heat regulator.

If you believe you might have a damaged diaphragm, airlock or valve it may require to be replaced with a new part. We advise calling out a Gas Safe signed up engineer who will have the ability to completely diagnose the issue and change any broken parts where necessary.

2. Leaking and Dripping

A variety of problems could cause your boiler to leak water. It will depend on where the water is leaking from to identify the cause-- nevertheless you need to never attempt to repair a leaking gas boiler yourself, always call out a Gas Safe signed up engineer.

The most common cause is a broken internal part, such as a pump seal or pressure valve. If the leak is originating from the pressure valve it may be a case that your boiler pressure is too expensive. If it's coming from the pump seal, it may have become broken and need changing.

You might likewise discover your boiler is leaking around the pipelines or tank-- this can be a result of corrosion or in some cases where the system has not been fitted correctly. In any case, we suggest calling out an engineer who will be able to identify and repair the issue for you (in in the worst case advise if you require to replace your boiler).

3. Kettling

Hearing an odd rumbling noise similar to when a kettle is boiling? When lime scale or sludge builds up on your boiler's heat exchanger you can get something called kettling. When these deposits build up in your boiler, they can restrict the flow of water within the heat exchanger. This can overheat the water, triggering it to steam and boil (triggering the kettle-like sounds).

Kettling is most common in areas with tough water, however can likewise impact boilers in soft water locations. Not just does it trigger your boiler to work harder and thus cost more to run, it can likewise reduce the system's life. If your boiler is kettling, it's advisable to call out a gas safe registered engineer who will likely eliminate your system to eliminate the accumulation of these deposits and guarantee the system is working properly again.

4. Pilot Light Goes Out

The pilot burner is a small blue flame that's kept alight to light a bigger burner. If it keeps gong off then it could be caused by a broken thermocouple stopping the gas supply, a draught blowing the pilot burner out or a deposit built up in the pilot light.

Prior to attempting to reignite the pilot light, it's very essential to inspect that there aren't any issues with the gas supply. If your gas stopcock is on but your boiler isn't receiving any gas, or if none of your other gas appliances are working, then you must contact your gas supplier. You can then try relighting the pilot light yourself-- ensuring you follow the guidelines found in your boiler's handbook for igniting the pilot light.

If neither of these things work you should call out a Gas Safe registered engineer. Constantly bear in mind that you should never carry out any work on your own gas boiler.

5. Little Boiler Pressure

Inspecting the pressure of your boiler could not be easier, simply have a look at the built-in pressure gauge. If you discover that the needle is below 1, then there might be an issue with low boiler pressure and your main heating unit won't operate properly.

There a variety of reasons why this might be happening:

- A water leak in the system

- The pressure relief valve needs replacing

- Just recently bled radiators

You need to start by checking for a noticeable leak in the system, if you find one then call a registered engineer, if not, you could try re-pressurising the system. If you do not feel comfy doing this then get in touch with an expert however if you want to give it a go then it is essential to follow the instructions in your heating systems' handbook.

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