Medium
H.02 – .04 on Baxi Assure

Your boiler's computer brain is momentarily confused by some internal settings and may need a simple electronic reboot.

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

Temporary error- parameter fault. Incorrect parameters.

DIY fix possible

Locate the reset button or selector switch on the front control panelPress and hold the reset button for at least 5 secondsWait for the boiler to complete its reboot sequenceIf the fault persists, contact a Gas Safe engineer to check the PCB parameters

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