What does the Worcester Bosch Fault 02 / 255 fault code mean?

Your boiler's internal computer has encountered a critical error and can no longer communicate with the heating controls, causing the system to stop working.

How much does it cost to fix Worcester Bosch error code Fault 02 / 255?

Typical repair cost for the Worcester Bosch Fault 02 / 255 fault is £220-450 including labour.

Can I fix Worcester Bosch fault code Fault 02 / 255 myself?

Locate the reset button on the front control panel

Worcester Bosch Fault 02 / 255 Fault Code: What It Means & How to Fix It

Technical description

Internal fault: FW 100 can no longer control the heating system!

What causes this fault?

This fault occurs when the boiler's main control board suffers a hardware failure and loses its ability to send or receive messages from the heating system. The most common reason is an electrical short or component degradation on the printed circuit board, which effectively leaves the boiler without its digital 'brain'.

Engineer required

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

Find a Gas Safe engineer

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Your boiler's internal computer has encountered a critical error and can no longer communicate with the heating controls, causing the system to stop working.

Technical description

What causes this fault?

Engineer required

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