BoilerFaultCodesWarmhaus E62 Fault Code
The Warmhaus E62 fault code means: your boiler has lost its settings and doesn't know how to burn gas efficiently, so it has shut down as a safety precaution.. It appears on 1 Warmhaus model in our database.
Technical description: Calibration request – boiler has detected an absence of calibration control.
What causes the Warmhaus E62 fault?
This fault occurs when the boiler's internal computer suffers a memory failure and loses the specific tuning data required to manage the burner. The most common reason is an electronic glitch in the main control board or a communication failure between the board and the gas valve, meaning the boiler no longer knows how to safely mix gas and air.
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 E62 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Warmhaus E62 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