Low
H.02 – .03 on Baxi 400 Combi (range)

Your boiler's control board is temporarily confused by its internal setup settings and needs a quick restart to synchronise correctly.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Temporary error- incorrect configuration settings C1/C2.

DIY fix possible

Locate the selector switch on the front of the boilerTurn the switch to the 'R' (Reset) position for at least 5 secondsReturn the switch to its original position and wait for the boiler to restart

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