Medium
H.02 – .04 on Baxi 800

Your boiler's internal computer has encountered a temporary settings glitch that is preventing it from running correctly.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

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 on the front control panel.Press and hold the Reset button for approximately 5 seconds.Wait for the boiler to complete its restart sequence to see if the error clears.

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