High
E.02 – .17 on Baxi Netaheat

Your boiler's computer cannot talk to the internal part that controls the gas flow, meaning the system has shut down for safety.

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.

Technical description

Loss of communication between gas valve and boiler printed circuit board (PCB) or fault in air/gas unit.

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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Related fault codes

E28View →E110View →

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