BoilerFaultCodesRemeha E05 Fault Code
The Remeha E05 fault code means: your boiler has stopped working because the fan that removes waste gases cannot spin properly, causing the system to shut down for safety.. It appears on 8 Remeha models in our database.
Technical description: Fan failure: check the fan and wiring.
What causes the Remeha E05 fault?
This fault occurs when the boiler's internal computer detects that the fan is not spinning at the correct speed to safely expel exhaust gases. The most common reason is that the fan motor has burnt out or seized, though it can also be caused by loose electrical connections or a fault on the main control board. Because the boiler cannot guarantee that harmful fumes are being moved out of the flue, it shuts down immediately as a safety precaution.
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 E05 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha E05 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