High
H.02 .02 on Baxi Assure System

Your boiler is currently idle because it has not been told how to operate, usually because it was recently installed or the internal memory was reset.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Waiting for configuration settings to be entered (CN1,CN2). CN1/CN2 CONFIGURATION MISSING Configure CN1/CN2

From this model's manual
Verified against the Baxi Bm Baxi B Basic System 2 600 800 Assure 500 Isim installation & service manual, page 49.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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H.02.03View →

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