BoilerFaultCodesRemeha 2 9. Fault Code
Also written as 29 — same fault.
The Remeha 2 9. fault code means: your boiler's fan is running continuously because the internal control computer and the fan are not communicating correctly.. It appears on 3 Remeha models in our database.
Technical description: Fan keeps running: a. electrical connections mixed up. b. electrical connections interrupted.
What causes the Remeha 2 9. fault?
This fault occurs when the boiler's main internal computer loses track of what the fan is doing, often due to a breakdown in communication through the wiring. The fan gets stuck in a safety loop where it runs constantly because it isn't receiving the correct 'stop' signal from the control board. Most commonly, this is caused by aged electrical components or loose connections between the fan motor and the main circuit board.
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 2 9. fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha 2 9. 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