Medium
127 on Baxi Profile Prima

Your boiler hasn't been able to heat the water hot enough to kill off harmful bacteria within the storage tank.

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

Legionella (cause of Legionnaires’ disease) protection temperature not reached

Engineer required

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

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Related fault codes

128View →E110View →E160View →

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