Medium
265 on Worcester Bosch 30i Junior

Your boiler is temporarily limiting its power output to prevent overheating because it is struggling to move heat away from the unit quickly enough.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

The boiler is waiting in response to a heat demand – the boiler regularly switches to partial load

DIY fix possible

Check that all radiator valves are fully openEnsure the system pressure is between 1 and 1.5 bar on the gaugeBleed all radiators to remove trapped airPress the reset button to see if the fault clears

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