Low
202 on Worcester Bosch Greenstar 30i

Your boiler is currently taking a brief pause and is waiting for the heating or hot water signals to communicate properly before it starts up.

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

The boiler is waiting – there was a heat demand from the on off or modulating control

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

Check that your room thermostat or programmer is turned up and calling for heatEnsure the batteries in your wireless thermostat have not run outWait up to 10 minutes to see if the boiler clears the message and starts automatically

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Related fault codes

200View →201View →203View →

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