Low
H.02.00 on Baxi 800 System 2

Your boiler is currently restarting itself or finishing a reset cycle and should return to normal operation shortly.

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.

What the manual says

Manufacturer manual

Reset in progress

Shared across the range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Wait up to 5 minutes for the countdown or reset process to completeEnsure any 'Reset' buttons are not stuck in the pressed positionIf the code persists for more than 10 minutes, try turning the main power switch off and back on

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Related fault codes

E.02View →H.02.02View →H.02.03View →

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