What does the Worcester Bosch Fault 13 / 158 fault code mean?

Your boiler's computer is confused because it thinks a new component has been plugged in or a setting has changed, and it needs to be told how to work with the updated system.

How much does it cost to fix Worcester Bosch error code Fault 13 / 158?

Typical repair cost for the Worcester Bosch Fault 13 / 158 fault is £80-160 including labour.

Worcester Bosch Fault 13 / 158 Fault Code: What It Means & How to Fix It

Technical description

System configuration: BUS device changed or replaced. Check system configuration for heating circuit!

What causes this fault?

This fault occurs when the boiler's main control board loses its connection with a key component or detects that a new part has been installed without being properly synced. The most common reason is a communication error between the boiler and a smart thermostat, or a hardware glitch that happens after a power surge or a recent repair where settings weren't fully saved.

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.

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Related fault codes

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Your boiler's computer is confused because it thinks a new component has been plugged in or a setting has changed, and it needs to be told how to work with the updated system.

Technical description

What causes this fault?

Engineer required

Related fault codes

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