Medium
127 on Baxi EP

Your boiler has failed to heat the hot water tank to a high enough temperature to kill off any potential bacteria.

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

DIY fix possible

Check that your hot water timer or programmer is set to be 'On' for at least an hourEnsure the hot water temperature dial on the boiler is turned up to its normal settingReset the boiler to see if the cycle completes on the next attempt

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