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

Your boiler has switched itself off because it has become too hot internally, usually due to a lack of water flow or a circulation error.

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 £120-£350 including labour.

Check that your radiator valves are open to allow water to flow.

OVERHEAT LOCKOUT

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

Each noise points to a different fault.

Sludge build-up — needs flushing, not bleeding.

Work through these before the call-out.