BoilerFaultCodesRavenheat 05E Fault Code
The Ravenheat 05E fault code means: your boiler has detected a problem with the fan that clears exhaust gases, preventing it from starting safely for heating or hot water.. It appears on 7 Ravenheat models in our database.
Technical description: Problem with fan, possibly no signal
What causes the Ravenheat 05E fault?
This fault occurs when the boiler's control board sends a command for the fan to spin but does not receive the necessary speed signal back to confirm it is running safely. The most common reasons are a mechanical failure of the fan motor, loose electrical connections between the internal components, or a faulty circuit board that can no longer process data.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Ravenheat models that show the 05E fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ravenheat 05E fault code information on this page is sourced and cross-checked against the official Ravenheat service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026