8 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
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Your boiler is currently unable to sense the temperature of your hot water, so it has shut down the hot water system to prevent it from overheating.
Your boiler has lost internal communication with one of its control sensors, which stops it from operating safely and efficiently.
Your boiler's computer has lost its internal configuration key, which is stopping it from knowing how to operate correctly.
Your boiler's temperature sensor is failing, which prevents it from knowing how hot the water inside is and causes it to shut down for safety.
Your boiler is trying to start but the flame is failing to light or stay on, so it has shut down as a safety precaution.
Your boiler has detected that the internal flame is still burning even though it should have turned off, which is a significant safety precaution.
Your boiler has detected that a flame is still burning even though it has tried to turn the gas supply off, which is a safety concern.
Your boiler has entered a temporary standby mode because the reset button was pressed accidentally or held down for too long.
BoilerFaultCodes