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My boiler is not heating water enough - why?

If you are finding that the water running from your hot taps is lukewarm and it will not get any hotter, you may have a problem with your boiler. This issue can be even worse if it is also impacting your radiators too. This can be caused by a fault in a boiler component - commonly this can include a faulty thermostat or a faulty heat exchanger. 

Please speak to your heating engineer if you suspect a problem with your boiler. 

My boiler has stopped working and there is no light on the on/off switch?

If your boiler has stopped working and there’s no light showing on the on/off switch or boiler panel, it usually means that the boiler isn’t receiving power or a signal from the heating controls. We recommend contacting your heating engineer to inspect your boiler and system.

You can also find further fault-finding and troubleshooting guidance in your boiler’s user manual.

My boiler has stopped working and there is a light on the on/off switch?

If your boiler has stopped working but the on/off light is illuminated, this could indicate one of the following three issues:

Boiler Overheating - Try resetting the boiler using the overheat reset located on the right-hand side of the control panel. Unscrew the black cap and press the button underneath. If you hear a click, the boiler has successfully reset. If there’s no click, the boiler may still be too hot (if it has recently fired), so wait for it to cool down before trying again. If it remains unresponsive, overheating is not the cause.

Boiler Up to Temperature - If the boiler has reached its set temperature but the heat isn’t circulating, this could indicate a system fault or an issue with the circulating pump. In this case, contact your heating engineer to determine the cause.

Burner Lockout - Press the red lockout button on the front of the boiler to attempt a reset. Only do this a couple of times. If the burner still fails to ignite, please contact your heating engineer for further assistance.

My heating is regularly losing pressure – why?

Your boiler plays a vital role in your heating system. If your system is losing pressure, you can check whether the boiler is the cause by following these steps:

Inspect for leaks: Remove the front cover of the boiler and look around the base and inside for any signs of water leakage. If you find a leak, contact your heating engineer immediately.

Check the pressure relief pipe: Locate the pipe that runs from the back of the boiler to the outside of your home and look for any evidence of water discharge.

Seek professional help: If you can’t find any visible leaks in or around the boiler, we recommend contacting your heating engineer for further advice and investigation.

What can cause an oil boiler burner to lockout?

A burner lockout can occur as a result of no oil or a leak in the pipeline. Another cause of burner lockout can be from contaminated oil. This contamination can be caused by one of the following: 

-water ingress into the oil tank from a missing cover; a damaged tank from condensation 

-sludge which can occur due to the growth of micro-organisms at the water fuel interface in the tank 

-or rust from a metal oil tank corroding. 

Your oil supplier will be able to assist you with cleaning your tank and flushing through the oil lines. 

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