BoilerFaultCodesYour boiler's internal computer has encountered a fault that is preventing it from running properly.
Book a Gas Safe engineer within 24–48 hours. Your boiler may be unsafe or could break down completely if left.
Technical description: Internal error
What causes this fault?
This fault occurs when the boiler’s main control board experiences a communication failure or an internal electronic processing error. It is essentially a breakdown in the boiler's 'brain' where it can no longer send or receive correct signals to operate the heating components safely. The most common reason is electronic component fatigue over time or a loose connection in the internal wiring loom.
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.
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A boiler cover plan would cover faults like E31 — no call-out fees, no surprises.
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Remeha Quinta 115 is discontinued — time for a new one?
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