BoilerFaultCodesRemeha 14 Fault Code
The Remeha 14 fault code means: your boiler's internal computer has developed a serious communication fault and can no longer control the heating process safely.. It appears on 2 Remeha models in our database.
Technical description: Control box failure
What causes the Remeha 14 fault?
This fault occurs when the boiler's internal computer brain suffers a critical hardware failure or loses the ability to talk to its sensors. The most common reason is electrical degradation of the circuit board components over time, preventing the system from performing its safety checks.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
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Gas Safe Register →Remeha models that show the 14 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha 14 fault code information on this page is sourced and cross-checked against the official Remeha service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026