8 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Main Eco Elite
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Your boiler has lost the ability to accurately measure the temperature of the hot water, so it has shut down to prevent overheating.
Your boiler has stopped working because it cannot light its burner properly, which is often due to a blockage in the internal waste pipe that clears away water created during heating.
Your boiler has detected that it is overheating and has automatically shut down to prevent damage or dangerous conditions.
Your boiler is struggling to clear air properly, meaning it has safely shut itself down to prevent any harmful combustion gases from lingering.
Your boiler is struggling because it either cannot circulate water correctly or there is not enough water pressure inside the system to operate safely.
Your boiler is struggling to detect the temperature of the water it is trying to heat for your taps and shower.
Your boiler has stopped working because it is unable to accurately measure the temperature of the water used for your radiators.
Your boiler is struggling to direct heat correctly between your radiators and your hot water taps, likely due to a stuck internal component or a sensor reading error.
BoilerFaultCodes