Low
H.02.00 on Baxi ASSURE 524 COMBI 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

From this model's manual
Verified against the Baxi/Baxi 400 Combi 2 Baxi400 Comni 2 1 Installation Manual Pdf installation & service 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

Find a Gas Safe engineer
Search the official register →
Boiler cover options

Avoid the next call-out bill

Monthly cover means no unexpected bills when your boiler breaks down.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

Affiliate links. We may earn a commission at no extra cost to you.

Related fault codes

E.02View →H.02.02View →H.02.03View →

All 65 fault codes on the ASSURE 524 COMBI 2

Seeing a different code? Every code this model can display, in one place.

254A.00.28A.00.29A.00.34A.02.06A.02.18A.02.36A.02.37A.02.45A.02.46A.02.48A.02.49A.02.54A.02.55A.02.76E.00.04E.00.05E.00.16E.00.17E.00.20E.00.21E.01.04E.01.12E.01.17E.01.20E.02.13E.02.17E.02.35E.02.39E.02.47E.04 | .54E.04.01E.04.02E.04.03E.04.08E.04.10E.04.12E.04.13E.04.17E.04.18E.04.23E.04.29E.04.54E.04.254H.00.42H.00.81H.01.00H.01.05H.01.08H.01.14H.01.18H.01.21H.02.02H.02.03H.02.04H.02.05H.02.07H.02.09H.02.10H.02.70H.03.00H.03.02H.03.05H.03.54

Related guides you might find useful

Boiler keeps cutting out

Lockout fault with a reset-needed pattern.

Read →

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →