BoilerFaultCodesWarmhaus E 88 Fault Code
Also written as E88 — same fault.
The Warmhaus E 88 fault code means: your boiler has detected an electrical issue with the internal component that controls the gas supply, meaning it has safely shut itself down to prevent any risk.. It appears on 1 Warmhaus model in our database.
Technical description: Fault of electronic gas valve managing circuit
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Warmhaus models that show the E 88 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Warmhaus E 88 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 7 July 2026