Medium Lockout
f028 on Intergas Xclusive 24

Your boiler's internal computer has become confused after several reset attempts and has locked itself out for safety.

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

Reset error.

What causes this fault?

This fault occurs when the boiler's reset button has been pressed too many times in a short configuration or if the internal computer has encountered a glitch during the startup process. It is essentially a software safety lock designed to prevent the boiler from being repeatedly forced to start when a different underlying issue might be present. Usually, a full power cycle is needed to clear the memory and allow the system to try again.

DIY fix possible

Turn off the power supply to the boiler at the fused spur switchWait for 30 secondsTurn the power back on and wait for the boiler to complete its startup sequence

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Related fault codes

F029View →F027View →

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