Medium
E37 on Alpha E-Tec

Your boiler has detected that the electricity coming from your home's main supply is weaker than necessary to run safely.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Low supply voltage

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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E06View →

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