BoilerFaultCodesRemeha é6 Fault Code
Also written as 6 — same fault.
The Remeha é6 fault code means: your boiler has detected a flame when there shouldn't be one, which means it is locking out for safety reasons.. It appears on 2 Remeha models in our database.
Technical description: Unwanted flame formation
What causes the Remeha é6 fault?
This fault occurs when the boiler's internal sensor detects a flame still burning after the heating cycle has finished or before it has even started. The most common reason is a sticking gas valve that isn't closing properly, or a faulty sensor providing a false signal to the control board.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Remeha models that show the é6 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha é6 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