Medium
285 on Worcester Bosch 1000

Your boiler has detected that the water returning to it is much hotter than expected, suggesting heat isn't circulating properly through your radiators.

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

Return temperature is too hot

What causes this fault?

Overtemperature at return

Engineer required

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

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