BoilerFaultCodesYour boiler’s internal computer has suffered a critical failure and can no longer control the heating process safely.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Internal control box failure: check/replace the control box.
What causes this fault?
This fault occurs when the boiler's main control board experiences an internal electronic failure, meaning it can no longer process data or manage safety checks accurately. The most common reason is age-related wear on the circuit board's components or a sudden electrical surge that has damaged the delicate internal wiring.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Protect yourself from future repair bills
A boiler cover plan would cover faults like E14 — no call-out fees, no surprises.
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Remeha Quinta 30 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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