BoilerFaultCodesRemeha 2 8. Fault Code
Also written as 28 — same fault.
The Remeha 2 8. fault code means: your boiler has stopped working because the fan that removes waste gases cannot start or is not being powered correctly.. It appears on 3 Remeha models in our database.
Technical description: Fan does not run: Fan defective or improperly fitted (mechanically or electrically). Fuse F2 (3.15 AT) defective. Transformer defective (power on X3?). electrical connections mixed up; electrical connections interrupted.
What causes the Remeha 2 8. fault?
This fault occurs when the boiler's control system attempts to start the fan to clear waste gases but detects no movement. The most common cause is either a mechanical failure within the fan motor or a blown internal fuse that has cut off the power supply to the component. In some cases, it can also be triggered by a faulty transformer or loose wiring connections that prevent the electrical signal from reaching the fan.
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 8. fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha 2 8. 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