What does the Baxi Lights Flash Off On fault code mean?

Your boiler has got too hot and has shut itself down for safety, which is why your heating and hot water have stopped working.

How much does it cost to fix Baxi error code Lights Flash Off On?

Typical repair cost for the Baxi Lights Flash Off On fault is £90-180 including labour.

Turn the boiler power off at the wall socket or fused spur

Overheat Lockout section: Check continuity across stats (flow pipe and fan).

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

Almost always a stuck diverter valve on combis.

Each noise points to a different fault.

Work through these before the call-out.