Low
203 on Worcester Bosch Danesmoor

Your boiler is currently pulse-checking and waiting for a signal to start, meaning it is powered on but not being asked to provide heating or hot water right now.

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.

Technical description

The boiler is on standby

DIY fix possible

Check that your room thermostat is turned up higher than the current room temperatureEnsure your heating programmer or timer is set to an 'ON' periodCheck that the thermostatic radiator valves (TRVs) are turned up

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