Low
200 on Worcester Bosch 24 RSF

Your boiler is currently working correctly and is simply indicating that it is in central heating mode.

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

The boiler is in heating mode

From this model's manual
Verified against the Worcester Bosch 24i Rsf 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.

DIY fix possible

No action is required as this is an operational status code, not a fault.Adjust your thermostat if you wish to stop the heating.Check your programmer settings if the heating is on when you do not expect it to be.

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