What does the Worcester Bosch BURNER LIGHT ONLY fault code mean?

Your boiler is perfectly fine, it is simply protecting itself from freezing temperatures by automatically staying active to keep your pipes warm.

How much does it cost to fix Worcester Bosch error code BURNER LIGHT ONLY?

Cost varies. Contact a Gas Safe registered engineer for a quote.

If boiler is in a very cold environment (below 5°C), boiler is running in 'Autofroststat' mode. Otherwise, demand light has failed.

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Break-even maths on monthly cover.

7 signs repair isn't worth it anymore.

Realistic UK prices for a swap.