Low
204 O on Worcester Bosch Junior 28i

Your boiler is currently hotter than it is supposed to be, so it has temporarily stopped firing to allow the water inside to cool down.

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

Current primary water temperature higher than set value

DIY fix possible

Check that all your radiator valves are open to allow heat to move away from the boilerEnsure your room thermostat is not set to an unusually high temperatureWait for the boiler to cool down naturally; it should restart once the temperature drops

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