BoilerFaultCodesRemeha e1 Fault Code
Also written as E1 — same fault.
The Remeha e1 fault code means: your boiler is struggling to ignite or detect a flame, causing the system to stop as a safety precaution.. It appears on 4 Remeha models in our database.
Technical description: Error during start-up procedure (requires 3 minute venting cycle after resolution)
What causes the Remeha e1 fault?
This fault occurs when the boiler tries to light but fails to establish or sense a stable flame within the set time limit. The most common reasons include a lack of gas reaching the burner, worn-out ignition components that can no longer create a spark, or a dirty sensor that cannot tell the boiler the flame is safely lit.
This issue sometimes surfaces during the first cold snap of autumn when internal components that have been idle all summer finally fail under the strain of constant use.
DIY fix possible
Check that your gas meter is turned on and other gas appliances like the hob are working.If you have a prepaid gas meter, verify that you have sufficient credit.Press and hold the 'Reset' button for two seconds and wait up to three minutes for the venting cycle to complete.
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Remeha models that show the e1 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Remeha e1 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 7 July 2026