What does the Baxi H.01 – .00 fault code mean?

Your boiler has lost its internal connection to the part that controls the gas supply, prevent it from lighting safely.

How much does it cost to fix Baxi error code H.01 – .00?

Typical repair cost for the Baxi H.01 – .00 fault is £180-450 including labour.

Loss of communication between gas valve and boiler board. Possible fault in air/gas unit or loose connection to gas valve.

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

Older boilers — thermocouple, draught, gas supply.

Safety-critical — turn off, read this.

7 signs repair isn't worth it anymore.