What does the Worcester Bosch H13 fault code mean?

Your boiler is simply reminding you that it is time for its annual safety service, as set by the installer, rather than indicating a mechanical breakdown.

How much does it cost to fix Worcester Bosch error code H13?

Typical repair cost for the Worcester Bosch H13 fault is £90-140 including labour.

Worcester Bosch H13 Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

A time has been set in the Service interval function i.e. 1 to 72 months and that time has expired. Service reminder time in the Boiler settings menu (section6.5.13, page43) allows this feature to be set (1 to 72), a 0 will disable this function.

Shared across the Greenstar range

This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.

Engineer required

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

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All 78 fault codes on the Greenstar i

Seeing a different code? Every code this model can display, in one place.

Your boiler is simply reminding you that it is time for its annual safety service, as set by the installer, rather than indicating a mechanical breakdown.

What the manual says

Engineer required

Avoid the next call-out bill

All 78 fault codes on the Greenstar i

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