BoilerFaultCodesYour boiler has likely stopped working because it has overheated or detected a safety limit issue that it cannot automatically reset.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Final fault code (Refer to section 7.11)
What causes this fault?
This fault occurs when the boiler's internal temperature exceeds a safe limit, causing the system to shut down to prevent damage. The most common reasons are a failed pump stopping water from circulating or a build-up of air and debris creating a blockage within the heat exchanger. It can also be triggered by a faulty sensor that is incorrectly reporting the temperature to the main control board.
This issue often appears when the heating is first turned on after summer, as the internal pump can seize up during long periods of inactivity.
DIY fix possible
Locate the mode selector switch on the front panelTurn the switch to the 'OFF/RESET' position and wait for a few secondsTurn the switch back to either the 'Hot Water' or 'Heating and Hot Water' position
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A boiler cover plan would cover faults like 02 — no call-out fees, no surprises.
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Vokera Linea HE is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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