BoilerFaultCodesWarmhaus E83 Fault Code
The Warmhaus E83 fault code means: your boiler has detected an inconsistent flame, which is often caused by a temporary interruption in the gas supply or a slight blockage in the air vent.. It appears on 1 Warmhaus model in our database.
Technical description: Temporary mis-burning error – could be due to a gas pressure or flue line issue.
What causes the Warmhaus E83 fault?
This fault occurs when the boiler's internal sensor detects that the flame is flickering or unstable rather than burning steadily. The most common reason is a temporary disruption in the balance of gas and air, which prevents the boiler from maintaining a safe and consistent heat output.
This issue can sometimes appear during very windy weather, as strong gusts can occasionally interfere with the air pressure entering the flue pipe.
DIY fix possible
Press the Reset button on the control panel to clear the temporary faultCheck if other gas appliances, like a hob, are working to ensure gas is being suppliedInspect the external flue pipe to ensure it is not obstructed by leaves or debris
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Gas Safe Register →Warmhaus models that show the E83 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Warmhaus E83 fault code information on this page is sourced and cross-checked against the official Warmhaus service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026