BoilerFaultCodesRemeha E41 Fault Code
The Remeha E41 fault code means: your boiler's internal computer has encountered a critical communication error and cannot process commands to heat your home.. It appears on 5 Remeha models in our database.
Technical description: Internal control unit error
What causes the Remeha E41 fault?
This fault occurs when the boiler's central brain, the Printed Circuit Board, can no longer send or receive signals correctly throughout the system. The most common reason is a physical failure of the electronic components on the board or a loose connection in the wiring harness that links the controls together.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Remeha models that show the E41 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha E41 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