What does the Baxi 3 red flashes fault code mean?

Your boiler is failing to light the burner after several attempts, which means your heating and hot water will not work.

How much does it cost to fix Baxi error code 3 red flashes?

Typical repair cost for the Baxi 3 red flashes fault is £120-350 including labour.

Check that your gas emergency control valve is in the 'on' position

Ignition fault. Boiler has attempted to light 5 times and failed.

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.

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.