High
E.04 – .02 on Baxi Profile Prima

Your boiler has stopped working because it cannot communicate with the sensor that monitors the temperature of the water flowing to your radiators.

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. Flow temperature sensor open-circuited, sensor not or badly connected, bad connection or sensor fault.

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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