What does the Worcester Bosch Failure at point A fault code mean?

Your boiler is struggling to light its small internal pilot flame, which means it cannot fire up to provide heating or hot water.

How much does it cost to fix Worcester Bosch error code Failure at point A?

Typical repair cost for the Worcester Bosch Failure at point A fault is £90-250 including labour.

Check if your gas meter is turned on or has credit

Start of pilot lighting test: Pilot flame cannot be observed. Check gas supply, pressure, pilot adjustment screw, and igniter spark.

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.

Almost always a stuck diverter valve on combis.

Lockout fault with a reset-needed pattern.