Medium
380 on Worcester Bosch Greenstar CDi Compact

Your boiler is receiving water that is already hotter than the temperature you have set for your taps and shower, which is confusing the system.

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

Inlet temperature greater than DHW Outlet Set point

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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