5 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Remeha Avanta Ace
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Your boiler has detected a problem with its internal temperature sensors, which means it cannot monitor heat levels safely and has stopped working.
Your boiler has detected a fault with the internal thermometer that monitors water temperature, causing the system to shut down for safety.
Your boiler has reached an unsafely high internal temperature, likely because there is not enough water flowing through the system to carry the heat away.
Your boiler has stopped working because water is not moving through the system properly or there is too much air trapped inside.
Your boiler's internal computer has lost its saved settings and is no longer communicating correctly with its own components.
Not faults — these are normal operating states. Tap to expand.
BoilerFaultCodes