Low
200 O on Worcester Bosch Greenstar 30i

Your boiler is currently working correctly and is simply letting you know that it is in central heating mode.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Boiler in heating mode

Shared across the 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.
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 status update rather than a fault.Check your thermostat if you did not expect the heating to be on.Ensure radiators are turned on if you require heat in specific rooms.

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