How much does it cost to fix Worcester Bosch error code No LED?

Typical repair cost for the Worcester Bosch No LED fault is £120-350 including labour.

No LED High

Worcester Bosch No LED Fault Code

Q: What does the Worcester Bosch No LED fault code mean?

Your boiler has completely lost power and is not responding, meaning it cannot provide any heating or hot water until the electrical supply is restored.

Also written as NOLED — same fault.

The Worcester Bosch No LED fault code means: your boiler has completely lost power and is not responding, meaning it cannot provide any heating or hot water until the electrical supply is restored.. It appears on 5 Worcester Bosch models in our database.

Technical description: No power supply

Typical repair cost £120-350 (including labour)

Engineer required

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

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Worcester Bosch models that show the No LED fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Worcester Bosch No LED fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026