Low
358 O on Worcester Bosch Greenstar 8000+ GR8701iW 32 C

Your boiler is automatically running a routine cycle to prevent the internal pump from getting stuck, which is a normal maintenance feature.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Anti-seizing functn. active

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Wb 47114 installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

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

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All 99 fault codes on the Greenstar 8000+ GR8701iW 32 C

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

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