High
E.04 – .03 on Baxi Assure

Your boiler has reached a dangerously high temperature and shut itself down because water is not moving through the system properly.

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.

Technical description

Permanent fault. Critical flow temperature reached, non-existent or insufficient circulation.

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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