33 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Vogue Gen2
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
Tap any card for details
Your boiler's internal memory chip has failed to communicate correctly with the main control board, meaning the system cannot identify its own settings.
Your boiler's internal memory card has developed a communication fault or is incorrectly configured, preventing the unit from operating.
Your boiler has detected that there is not enough water in the system to operate safely, causing it to shut down to prevent damage.
Your boiler has lit correctly but the flame has unexpectedly gone out, causing the system to shut down for safety.
Your boiler is failing to stay lit or cannot detect its own flame, meaning it has shut down for safety and cannot provide heating or hot water.
Your boiler has detected an issue with the fan that safely clears away exhaust fumes, causing the system to shut down for safety.
Your boiler has detected a problem with the sensor that monitors the temperature of the water leaving the unit, meaning it cannot safely regulate heat.
Your boiler has lost its ability to monitor the temperature of the water coming back from your radiators, often causing the system to shut down to prevent damage.
Your boiler has lost connection with the sensor that monitors the outdoor temperature, which might make your heating less efficient.
Your boiler is detects that the electricity supply coming into your home is at a lower voltage than it needs to operate correctly.
Your boiler's internal computer brain hasn't been set up correctly or has forgotten its settings, so it doesn't know how to operate the heating system.
Your boiler's internal computer brain is either confused or has failed, meaning it cannot tell the rest of the components how to operate safely.
Your boiler has detected that hot water is flowing in the wrong direction through the pipes, usually because they were connected backwards or a sensor is poorly placed.
Your boiler has detected that water is not moving through the system properly, which is preventing it from heating up safely.
Your boiler has detected that the water temperature readings are backwards, suggesting a sensor might have come loose or failed.
Your boiler has detected that heat isn't moving through the pipes in the expected direction, which usually means a sensor is loose or has failed.
Your boiler has detected that the water is getting too hot too quickly, which usually means the water cannot circulate properly through your heating system.
Your boiler has failed to light several times and has shut down as a safety precaution.
Your boiler has stopped working because the internal temperature has become too high or water is not circulating through the system properly.
Your boiler has stopped working because it failed to light properly after several attempts, usually due to a lack of gas or a spark issue.
Your boiler has detected that water is either not moving through the system properly or a temperature sensor is giving a faulty reading, causing the unit to shut down for safety.
Your boiler has been manually reset too many times in a short period and has temporarily locked itself out for safety.
Your boiler has detected an issue with the sensor that monitors the temperature of the water returning to the unit, causing it to stop running for safety.
Your boiler thinks a flame is present when there shouldn't be one, so it has shut down for safety.
Your boiler has encountered a temporary communication glitch and simply needs to be restarted to clear the error.
Your boiler has stopped working because the electrical supply is currently too weak to power the internal components safely.
Your boiler has stopped working because the water level inside the system has dropped too low and needs topping up.
Your boiler has become too hot and has shut itself down for safety to prevent damage.
Your boiler's internal pump has become stuck or clogged, which means it cannot circulate hot water around your radiators or taps.
Your boiler has safety-locked because it got too hot, and it needs a manual restart to clear the internal safety switch.
Your boiler has been manually reset too many times in a short window and has now locked itself for safety to prevent further issues.
Your boiler has tried to start five times in 15 minutes and has locked itself out to protect its components from extra wear.
Your boiler has stopped working because the water pressure inside the system is too low for it to run safely.
BoilerFaultCodes