What does the Baxi E4 fault code mean?

Your boiler has failed to light, which may be caused by excess air in your heating system preventing proper operation.

How much does it cost to fix Baxi error code E4?

Typical repair cost for the Baxi E4 fault is £60-180 including labour.

Switch off the boiler and wait for the system to cool down

Ignition failure – try bleeding your radiators

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

Lockout fault with a reset-needed pattern.

Older boilers — thermocouple, draught, gas supply.

7 signs repair isn't worth it anymore.