Low
E:02.00 on Baxi 400 424 / 428 Combi

Your boiler is currently processing a manual reset command and is temporarily pausing its normal operation to restart safely.

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

Boiler reset in progress

Shared across the 400 424 / 428 Combi 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 for 5 to 10 minutes to allow the boiler to complete its internal self-check.Do not turn the power off while this message is displayed.If the code persists for more than 15 minutes, turn the boiler off at the mains switch, wait 30 seconds, and turn it back on.

Find a Gas Safe engineer
Search the official register →

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

All 41 fault codes on the 400 424 / 428 Combi

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

Related guides you might find useful